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| #set page(paper: "a4") | |
| #let page-width = 595.28pt - 2 * 2.5cm // A4, 页宽减去页边距 | |
| // #set enum(numbering: "A.") | |
| #let with-ans = state("with-ans", true) | |
| #show list: it => context { | |
| let item-counter = counter("item") | |
| item-counter.update(1) | |
| set grid(rows: 1.5em) | |
| let one-line = measure( | |
| grid( | |
| columns: (auto, 1fr), | |
| [A.], [题], | |
| ), | |
| width: page-width, | |
| ).height | |
| let half = measure( | |
| grid( | |
| columns: (auto, 1fr) * 2, | |
| ..it | |
| .children | |
| .map(e => ( | |
| context { | |
| item-counter.step() | |
| item-counter.display("A. ") | |
| }, | |
| e.body, | |
| )) | |
| .flatten() | |
| ), | |
| width: page-width, | |
| ).height | |
| let full = measure( | |
| grid( | |
| columns: (auto, 1fr) * 4, | |
| ..it | |
| .children | |
| .map(e => ( | |
| context { | |
| item-counter.step() | |
| item-counter.display("A. ") | |
| }, | |
| e.body, | |
| )) | |
| .flatten() | |
| ), | |
| width: page-width, | |
| ).height | |
| if full <= one-line { | |
| // 能放在一行 | |
| grid( | |
| columns: (auto, 1fr) * 4, | |
| ..it | |
| .children | |
| .map(e => ( | |
| context { | |
| item-counter.step() | |
| item-counter.display("A. ") | |
| }, | |
| e.body, | |
| )) | |
| .flatten() | |
| ) | |
| } else if half <= one-line * 2 { | |
| grid( | |
| columns: (auto, 1fr) * 2, | |
| ..it | |
| .children | |
| .map(e => ( | |
| context { | |
| item-counter.step() | |
| item-counter.display("A. ") | |
| }, | |
| e.body, | |
| )) | |
| .flatten() | |
| ) | |
| } else { | |
| grid( | |
| columns: (auto, 1fr), | |
| ..it | |
| .children | |
| .map(e => ( | |
| context { | |
| item-counter.step() | |
| item-counter.display("A. ") | |
| }, | |
| e.body, | |
| )) | |
| .flatten() | |
| ) | |
| } | |
| } | |
| #show emph: it => context { | |
| if with-ans.get() { | |
| text(red, it.body) | |
| } else { | |
| it.body | |
| } | |
| } | |
| #let prob(description, items, solution) = context { | |
| show math.equation.where(block: true): set align(left) | |
| [#description] | |
| [#items] | |
| if with-ans.get() { | |
| [#solution] | |
| } | |
| } | |
| #with-ans.update(true) | |
| #prob[ | |
| 题目题目题目？ | |
| ][ | |
| - 1 | |
| - 2 | |
| - 3 | |
| - 4 | |
| ][ | |
| 解析：xxxxx | |
| ] | |
| #prob[ | |
| 题目题目题目？ | |
| ][ | |
| - 意大利面要拌42号混凝土记得加点盐记得加点盐记得加 | |
| - $ | |
| E = m c^2 | |
| $ | |
| - _3_ | |
| - $ | |
| E = 1 / 2 m v^2 | |
| $ | |
| ][ | |
| 解析：xxxxx | |
| ] | |
| #with-ans.update(false) | |
| #prob[ | |
| 题目题目题目？ | |
| ][ | |
| - 1 | |
| - 2 | |
| - 3 | |
| - 4 | |
| ][ | |
| 解析：xxxxx | |
| ] | |
| #prob[ | |
| 题目题目题目？ | |
| ][ | |
| - 春雨惊春清谷天春雨惊春清谷天 | |
| - 夏满芒夏暑相连夏满芒夏暑相连 | |
| - _秋处露秋寒霜降秋处露秋寒霜降_ | |
| - 冬雪雪冬小大寒冬雪雪冬小大寒 | |
| ][ | |
| 解析：xxxxx | |
| ] |
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