1 . 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 |
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解题方法
2 . 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 |
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3 . 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 |
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解题方法
4 . 设函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c056e0738314ea7cce41cf12de8ddc.png)
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176cc960236e3108d66448938feddaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c056e0738314ea7cce41cf12de8ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4f355c7770d1725a5961068fa76a6d.png)
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解题方法
5 . 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.![]() |
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解题方法
6 . 已知函数
满足下列条件:
(1)当
时,
,且
;
(2)当
时,
;
(3)在
上的最小值为0.
求最大的
,使得存在
,只要
,就有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7620b8fd2fe76cdcfceee953e1492e90.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd089822beae382e173954e7b2f5b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f028e597d34316db2c4c993fc72ff32d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff133c17652425c22f0b367e002797df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda178cf86d2baff95be7e655f020fc3.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
求最大的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884ce1e9436d39f34f6d3116cb2a140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08696f29924fad88f81c45c11149917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa5db87f46602bdba3df300ffe16b0a.png)
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7 . 整数m,n满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24aa90aa2d2ad600a5fce8ea1a88dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
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8 . 函数
满足
,则常数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59d46d237d30bf862090469c98da9f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535fbd4834ea07cadae1dcc39bb83913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
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9 . 非空集合
,满足条件:若
,则
.这样的M有( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c86d2a3bf9112fd5a64185cf1065c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c994bd56f31235e577dfd37121e32dcb.png)
A.13个 | B.14个 | C.15个 | D.16个 |
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10 . 已知集合
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e885f1f0852dae19481cb9ccdaee02de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次