From 42f1c7e27aed44ce8a2ff26943392af7c955824b Mon Sep 17 00:00:00 2001 From: "weiye.wang" Date: Sun, 28 Jan 2024 20:24:32 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B930439=E9=A2=98=E9=9D=A2?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 题库0.3/Problems.json | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index d3f01d69..630bd2d2 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -669381,7 +669381,7 @@ }, "030439": { "id": "030439", - "content": "已知定义域为$(0,+\\infty)$的函数$f(x)$满足: 对任何$x\\in (0,+\\infty)$, 都有$f(3x)=3f(x)$, 且当$x\\in (1,3]$时, $f(x)=3-x$. 在下列结论中, 正确命题的序号是\\blank{50}.\\\\\n\\textcircled{1} 对任何$m\\in \\mathbf{Z}$, 都有$f(3^m)=0$; \\textcircled{2} 函数$f(x)$的值域是$[0,+\\infty)$; \\textcircled{3} 存在$n\\in \\mathbf{Z}$, 使得$f(3^n+1)=17$; \\textcircled{4} ``函数$f(x)$在区间$(a,b)$上单调递减''的一个充要条件是``存在$k\\in \\mathbf{Z}$, 使得$(a,b)\\subseteq (3^k,3^{k+1})$.", + "content": "已知定义域为$(0,+\\infty)$的函数$f(x)$满足: 对任何$x\\in (0,+\\infty)$, 都有$f(3x)=3f(x)$, 且当$x\\in (1,3]$时, $f(x)=3-x$. 在下列结论中, 正确命题的序号是\\blank{50}.\\\\\n\\textcircled{1} 对任何$m\\in \\mathbf{Z}$, 都有$f(3^m)=0$; \\textcircled{2} 函数$f(x)$的值域是$[0,+\\infty)$; \\textcircled{3} 存在$n\\in \\mathbf{Z}$, 使得$f(3^n+1)=17$; \\textcircled{4} ``函数$f(x)$在区间$(a,b)$上单调递减''的一个充要条件是``存在$k\\in \\mathbf{Z}$, 使得$(a,b)\\subseteq (3^k,3^{k+1})$''.", "objs": [], "tags": [ "第二单元", @@ -669411,7 +669411,8 @@ ], "origin": "2019届高三基础考试题12", "edit": [ - "20221103\t王伟叶" + "20221103\t王伟叶", + "20240128\t王伟叶" ], "same": [], "related": [],