1 . 如图,
是正方形
的内接三角形,若
,则点
分线段
所成的比为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c922cbd707131b52757c464804ca24f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c33c81f03b71c2e436078e43134a247a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/10/5f1feaae-e5b6-4f03-b876-dcc6821fb277.png?resizew=144)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 对于函数
下列说法正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0abdd99a075638b654d61acfd01130a7.png)
A.![]() ![]() |
B.当且仅当![]() ![]() ![]() |
C.![]() ![]() |
D.当且仅当![]() ![]() |
您最近一年使用:0次
名校
解题方法
3 . 若
,都有
成立,则实数
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa2686060312ed2221ad9de62c260c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31d39e253f2da686e7e589857bb23117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-10更新
|
507次组卷
|
2卷引用:第十四届高二试题(B卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)
4 . 2013年11月第十八届三中全会于北京召开,会上指出我国社会保障事业全面推进,已基本建成覆盖城乡的社会保障体系.2012年末,全国参加城镇职工基本养老保险人数30426.8万人,比1989年末增加24716.5万人.假定城镇职工基本养老保险人数的年增长率保持不变,再经过5年(不考虑其他因素),该人数最接近( )亿人.(注:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fa97d6a7640a85255ad45a695efe4c.png)
A.3.5 | B.4.5 | C.5 | D.6 |
您最近一年使用:0次
解题方法
5 . 平面直角坐标系中,点
为原点,
,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f27cfcf2b0a83a51d7bdb31c90f5f58.png)
,且
,则满足条件的点
表示的阴影区域为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0fc60e5a06103d33b86465a0c0b2de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f27cfcf2b0a83a51d7bdb31c90f5f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c05ffd6d32a204f39cf3807149f389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784fc1d4182cfd888d00484fbfc9abb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
6 . 已知函数
的定义域为
,对任意的
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274c8d81c4c746222a2b904812872bf0.png)
成立,则函数
的奇偶性是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd423a80d5b6fea8753fa1813cfbcc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274c8d81c4c746222a2b904812872bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a03c24a03a215d5df388b1e27e396f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
A.既奇又偶 | B.非奇非偶 | C.奇非偶 | D.偶非奇 |
您最近一年使用:0次
解题方法
7 . 给定集合
,集合
,集合
,则下列说法正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9185777d980e41ee3d009c0d83326398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bed88e7f655d1b365fd53e0d0f8312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4387a095eae76bddb70ad402af7280.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 我们称数集
为数域
,当且仅当数集
中的任意两个元素经过加法、减法、乘法、除法(除数不为0)四则运算后,其运算结果仍在数集
中,则下列数集能称作数域的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
A.自然数集 | B.整数集 | C.有理数集 | D.无理数集 |
您最近一年使用:0次
9 . 定义
表示实数
、
中较大的数.已知数列
满足
,
,
,若
,记数列
的前
项和为
,则
的值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3054ef0d5dc5823baf2d390bc2b6241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7815c6b825bbbb134ed7d9dd81d909f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f966272f7781790ff27e40db6b525253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76853e1b5ecff331be1b7cc28d85d2b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fb7ab258e9bf3e4b213e28a5141ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d5611c524c9abbcb4c9c1eb04a3791.png)
A.2014 | B.2015 | C.5235 | D.5325 |
您最近一年使用:0次
解题方法
10 . 已知函数
是
上的奇函数,且在区间
上单调递增,若
,
,
,则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3cda656c1084d6b1c720b7483c2a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8275b1e89c98e9fb2f3b594c2ea9fa0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7299c923cf91eb19965eb13792a7b9cd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次