From 6dd289aaa9ca1ff85140dfd66c53b3b6002de797 Mon Sep 17 00:00:00 2001 From: wangweiye7840 Date: Fri, 28 Jul 2023 13:03:06 +0800 Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E4=B8=80=E9=81=93=E5=85=B3?= =?UTF-8?q?=E8=81=94=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 | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index 92962678..17f1e5c4 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -494383,6 +494383,31 @@ "space": "4em", "unrelated": [] }, + "019302": { + "id": "019302", + "content": "数列$\\{a_n\\}$中, $a_1=1$, $n \\geq 2$时, $a_n, S_n, S_n-\\dfrac 12$成等比数列.\\\\\n(1) 证明: $\\{\\dfrac{1}{S_n}\\}$是等差数列;\\\\\n(2) 求数列$\\{a_n\\}$通项公式.", + "objs": [], + "tags": [ + "第四单元" + ], + "genre": "4em", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "2025届高一校本作业选择性必修第四章-20230728修改", + "edit": [ + "20221231\t王伟叶", + "20230728\t徐慧" + ], + "same": [], + "related": [ + "020806" + ], + "remark": "", + "space": "4em", + "unrelated": [] + }, "020001": { "id": "020001", "content": "判断下列各组对象能否组成集合, 若能组成集合, 指出是有限集还是无限集.\\\\\n(1) 上海市控江中学$2022$年入学的全体高一年级新生;\\\\\n(2) 中国现有各省的名称;\\\\\n(3) 太阳、$2$、上海市;\\\\\n(4) 大于$10$且小于$15$的有理数;\\\\\n(5) 末位是$3$的自然数;\\\\\n(6) 影响力比较大的中国数学家;\\\\\n(7) 方程$x^2+x-3=0$的所有实数解;\\\\ \n(8) 函数$y=\\dfrac 1x$图像上所有的点;\\\\ \n(9) 在平面直角坐标系中, 到定点$(0, 0)$的距离等于$1$的所有点;\\\\\n(10) 不等式$3x-10<0$的所有正整数解;\\\\\n(11) 所有的平面四边形.", @@ -513805,7 +513830,9 @@ "20221231\t王伟叶" ], "same": [], - "related": [], + "related": [ + "019302" + ], "remark": "", "space": "4em", "unrelated": []