From b72cc34060eed4f323608ec4366a43940ee426a9 Mon Sep 17 00:00:00 2001 From: wangweiye7840 Date: Fri, 5 Jan 2024 09:35:15 +0800 Subject: [PATCH] =?UTF-8?q?=E5=BD=95=E5=85=A524=E5=B1=8A=E8=B5=8B=E8=83=BD?= =?UTF-8?q?=E8=A1=A5=E5=85=85=E9=A2=98=E8=87=B38B?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 题库0.3/Problems.json | 100 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index fcd41ddc..21db1056 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -617432,6 +617432,106 @@ "space": "", "unrelated": [] }, + "023041": { + "id": "023041", + "content": "已知向量 $\\overrightarrow{AB}=(1,2)$, $\\overrightarrow{AC}=(3,5)$, 则向量 $\\overrightarrow{BC}$ 的坐标是\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "24届赋能补充题目", + "edit": [ + "20240105\t毛培菁" + ], + "same": [], + "related": [], + "remark": "", + "space": "", + "unrelated": [] + }, + "023042": { + "id": "023042", + "content": "在二项式 $(x^2-\\dfrac{1}{x})^5$ 的展开式中, $x^4$ 项的系数为\\blank{50}. (结果用数值表示)", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "24届赋能补充题目", + "edit": [ + "20240105\t毛培菁" + ], + "same": [], + "related": [], + "remark": "", + "space": "", + "unrelated": [] + }, + "023043": { + "id": "023043", + "content": "若 $\\alpha$、$\\beta$ 是一元二次方程 $2 x^2+x+3=0$ 的两个根, 则 $\\dfrac{1}{\\alpha}+\\dfrac{1}{\\beta}=$\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "24届赋能补充题目", + "edit": [ + "20240105\t毛培菁" + ], + "same": [], + "related": [], + "remark": "", + "space": "", + "unrelated": [] + }, + "023044": { + "id": "023044", + "content": "在 $\\triangle ABC$ 中, 内角 $A, B, C$ 的对边是 $a, b, c$. 若 $a^2=(2+\\sqrt{3}) b^2$, $b=c$, 则 $A=$\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "24届赋能补充题目", + "edit": [ + "20240105\t毛培菁" + ], + "same": [], + "related": [], + "remark": "", + "space": "", + "unrelated": [] + }, + "023045": { + "id": "023045", + "content": "给定空间中的直线 $l$ 及平面 $\\alpha$, 则条件``直线 $l$ 与平面 $\\alpha$ 内无数条直线都垂直''是``直线 $l$与平面 $\\alpha$ 垂直''的\\bracket{20}.\n\\twoch{充分非必要条件}{必要非充分条件}{充要条件}{既非充分也非必要条件}", + "objs": [], + "tags": [], + "genre": "选择题", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "24届赋能补充题目", + "edit": [ + "20240105\t毛培菁" + ], + "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