# OCME · 知識與練習查找 302 MKO / 1,441 families / 360 batches / 36,000 questions. 36,000 second-context math/bilingual reviewed; 0 display/symbol-checked candidates. Source questions: candidate. English: ai_candidate. No new proof, Lean, SREG or training. 25 results; page 1/1. ## 第 16176 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0026`; number: 16176 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0026/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0026/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0026.json) ## 第 16177 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0027`; number: 16177 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0027/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0027/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0027.json) ## 第 16178 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0028`; number: 16178 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0028/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0028/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0028.json) ## 第 16179 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0029`; number: 16179 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0029/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0029/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0029.json) ## 第 16180 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0030`; number: 16180 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0030/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0030/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0030.json) ## 第 16181 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0031`; number: 16181 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0031/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0031/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0031.json) ## 第 16182 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0032`; number: 16182 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0032/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0032/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0032.json) ## 第 16183 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0033`; number: 16183 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0033/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0033/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0033.json) ## 第 16184 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0034`; number: 16184 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0034/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0034/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0034.json) ## 第 16185 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0035`; number: 16185 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0035/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0035/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0035.json) ## 第 16186 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0036`; number: 16186 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0036/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0036/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0036.json) ## 第 16187 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0037`; number: 16187 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0037/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0037/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0037.json) ## 第 16188 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0038`; number: 16188 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0038/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0038/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0038.json) ## 第 16189 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0039`; number: 16189 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0039/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0039/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0039.json) ## 第 16190 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0040`; number: 16190 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0040/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0040/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0040.json) ## 第 16191 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0041`; number: 16191 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0041/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0041/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0041.json) ## 第 16192 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0042`; number: 16192 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0042/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0042/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0042.json) ## 第 16193 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0043`; number: 16193 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0043/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0043/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0043.json) ## 第 16194 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0044`; number: 16194 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0044/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0044/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0044.json) ## 第 16195 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0045`; number: 16195 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0045/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0045/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0045.json) ## 第 16196 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0046`; number: 16196 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0046/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0046/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0046.json) ## 第 16197 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0047`; number: 16197 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0047/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0047/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0047.json) ## 第 16198 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0048`; number: 16198 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0048/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0048/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0048.json) ## 第 16199 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0049`; number: 16199 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0049/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0049/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0049.json) ## 第 16200 題：開覆蓋與子覆蓋 - ID: `q-20261014-advance-20261101-r03-open-cover-and-subcover-0050`; number: 16200 - Processing: second_context_reviewed - MKO: [mko-open-cover-and-subcover](/zh-Hant/mko/mko-open-cover-and-subcover/) - Family: [qf-mod32-cover-subcover-audit](/zh-Hant/explore/?family=qf-mod32-cover-subcover-audit) - Batch: [batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations](/zh-Hant/explore/?batch=batch-20261014-advance-20261101-r03-open-cover-and-subcover-foundations) - [Derivation](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0050/) / [Markdown](/zh-Hant/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0050/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261101-r03-open-cover-and-subcover-0050.json)