1 . 空集是任何集合的子集( )
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2 . 函数
的定义域为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446f653af671bafe76711759295bd6e1.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/298ef0c25e99a84f3808ef0431ab4f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446f653af671bafe76711759295bd6e1.png)
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3 .
的图像经过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3859dc25fb11e7c6e6cefe56f7ce906.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef469c7b7cb9945b984222381b9c000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3859dc25fb11e7c6e6cefe56f7ce906.png)
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4 . 函数
的定义域为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca543ad54da566e2befd9f1fc64ed2ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
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5 . 若
是全集
的一个非空子集,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4411598e6ff48451beba0dcf3131e460.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4411598e6ff48451beba0dcf3131e460.png)
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6 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db5dbc2620601eb5d96543aee449a02e.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd2e1862700d77b555e4ac0e4770425e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075d564f3e2670b352f9bf33e702091c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db5dbc2620601eb5d96543aee449a02e.png)
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