From 890585fe6e127680e56b0f21480da4945d72643b Mon Sep 17 00:00:00 2001 From: wangweiye7840 Date: Mon, 27 Nov 2023 14:37:49 +0800 Subject: [PATCH] =?UTF-8?q?=E4=B8=BA2026=E5=B1=8A=E9=AB=98=E4=B8=80?= =?UTF-8?q?=E4=B8=8A=E9=9A=8F=E5=A0=82=E7=BB=83=E4=B9=A0=E6=B7=BB=E5=8A=A0?= =?UTF-8?q?=E4=B8=80=E9=81=93=E8=87=AA=E6=8B=9F=E9=A2=98=E7=9B=AE?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 题库0.3/Problems.json | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index cbd77bbe..e7447c89 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -607665,6 +607665,26 @@ "space": "4em", "unrelated": [] }, + "022889": { + "id": "022889", + "content": "函数$y=\\dfrac{x-5}{3x+2}$, $x\\in (-\\dfrac{2}{3},3]$的值域为\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "自拟题目", + "edit": [ + "20231127\t朱敏慧" + ], + "same": [], + "related": [], + "remark": "", + "space": "", + "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