diff --git a/工具v2/文本文件/新题收录列表.txt b/工具v2/文本文件/新题收录列表.txt index 37208544..70b3c5f9 100644 --- a/工具v2/文本文件/新题收录列表.txt +++ b/工具v2/文本文件/新题收录列表.txt @@ -187,3 +187,6 @@ 20240125-141616 024100:024107 +20240125-141926 +024108,020814,024109:024111,000315,024112 + diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index 9a230dd0..bbd579f3 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -201195,7 +201195,9 @@ "20220720\t王伟叶" ], "same": [], - "related": [], + "related": [ + "024109" + ], "remark": "", "space": "", "unrelated": [] @@ -388333,7 +388335,9 @@ "20230128\t王伟叶" ], "same": [], - "related": [], + "related": [ + "024109" + ], "remark": "", "space": "", "unrelated": [] @@ -649030,6 +649034,109 @@ "space": "4em", "unrelated": [] }, + "024108": { + "id": "024108", + "content": "若 $f(n)=1^2+2^2+\\cdots+n^2+(n+1)^2+n^2+\\cdots+2^2+1^2$, 则 $f(1)=$\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "自拟题目", + "edit": [ + "20240125\t毛培菁" + ], + "same": [], + "related": [], + "remark": "", + "space": "", + "unrelated": [] + }, + "024109": { + "id": "024109", + "content": "用数学归纳法证明``$1+\\dfrac{1}{2}+\\dfrac{1}{3}+\\cdots+\\dfrac{1}{2^n-1}\\dfrac{n}{n+1}$ 对任意 $n \\geq k$($n, k \\in \\mathbf{N}$, $n$、$k \\geq 1$) 的自然数都成立, 则 $k$ 的最小值为\\bracket{20}.\n\\fourch{$1$}{$2$}{$3$}{$4$}", + "objs": [], + "tags": [], + "genre": "选择题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "自拟题目", + "edit": [ + "20240125\t毛培菁" + ], + "same": [], + "related": [], + "remark": "", + "space": "", + "unrelated": [] + }, + "024111": { + "id": "024111", + "content": "一个与正整数 $n$ 有关的命题, 当 $n=2$ 时命题成立, 且由 $n=k$($k \\geq 2$, $k \\in \\mathbf{N}$) 时命题成立可以推得 $n=k+2$ 时命题也成立, 则\\bracket{20}.\n\\twoch{该命题对于 $n>2$ 的自然数 $n$ 都成立}{该命题对于所有的正偶数都成立}{该命题何时成立与 $k$ 取值无关}{以上答案都不对}", + "objs": [], + "tags": [], + "genre": "选择题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "自拟题目", + "edit": [ + "20240125\t毛培菁" + ], + "same": [], + "related": [], + "remark": "", + "space": "", + "unrelated": [] + }, + "024112": { + "id": "024112", + "content": "用数学归纳法证明: $7^n+3^{n-1}$($n \\in \\mathbf{N}$, $n \\geq 1$) 能被 $4$ 整除.", + "objs": [], + "tags": [], + "genre": "解答题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "自拟题目", + "edit": [ + "20240125\t毛培菁" + ], + "same": [], + "related": [], + "remark": "", + "space": "4em", + "unrelated": [] + }, "030001": { "id": "030001", "content": "若$x,y,z$都是实数, 则:(填写``\\textcircled{1} 充分非必要、\\textcircled{2} 必要非充分、\\textcircled{3} 充要、\\textcircled{4} 既非充分又非必要''之一)\\\\\n(1) ``$xy=0$''是``$x=0$''的\\blank{50}条件;\\\\\n(2) ``$x\\cdot y=y\\cdot z$''是``$x=z$''的\\blank{50}条件;\\\\\n(3) ``$\\dfrac xy=\\dfrac yz$''是``$xz=y^2$''的\\blank{50}条件;\\\\\n(4) ``$|x |>| y|$''是``$x>y>0$''的\\blank{50}条件;\\\\\n(5) ``$x^2>4$''是``$x>2$'' 的\\blank{50}条件;\\\\\n(6) ``$x=-3$''是``$x^2+x-6=0$'' 的\\blank{50}条件;\\\\\n(7) ``$|x+y|<2$''是``$|x|<1$且$|y|<1$'' 的\\blank{50}条件;\\\\\n(8) ``$|x|<3$''是``$x^2<9$'' 的\\blank{50}条件;\\\\\n(9) ``$x^2+y^2>0$''是``$x\\ne 0$'' 的\\blank{50}条件;\\\\\n(10) ``$\\dfrac{x^2+x+1}{3x+2}<0$''是``$3x+2<0$'' 的\\blank{50}条件;\\\\\n(11) ``$0