在数
,
,
,
,
,
中,正数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e844eda61f765eb5346d44f42f4f63b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0edc8e680cd1bbef0c2f0ddc4423cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f8c3c3632f7afbceef558d53217b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d6c4ecd2bf6d223b829e0b2ddc36adb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef74676264bd8c177607ee552060ecc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2018-11-14 23:53:52
|
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【推荐1】在实数
,
,
,
,
,1.414中有理数有( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598564aec706dff769c5afc4c378c572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc54231b2fdd8baae870b9b320ee3933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96850ba27b949ef3d5e933a889906983.png)
A.2 | B.3 | C.4 | D.5 |
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(0.85)
【推荐1】下列说法正确的是( )
A.一个有理数不是正数就是负数 | B.0是最小的数 |
C.一个有理数不是整数就是分数 | D.1是最小的整数 |
您最近一年使用:0次
单选题
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【推荐2】下列说法正确的有( )个
①一个数前面加上“
”号,这个数就是负数;
②单项式
的系数是
;
③若a是正数,则
不一定是负数;
④零既不是正数也不是负数;
⑤多项式x3y﹣2xy﹣4y﹣23是四次四项式,常数项是
;
⑥若a=b,则
.
①一个数前面加上“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
②单项式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c5770f1e957fd4748e83ba22d83e693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
③若a是正数,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5060ad37c403f248c937c1d59af5c71.png)
④零既不是正数也不是负数;
⑤多项式x3y﹣2xy﹣4y﹣23是四次四项式,常数项是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01317332a203c898536b1d0459f51d23.png)
⑥若a=b,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f85bec62c98e091ca791fe78052401f.png)
A.1 | B.2 | C.3 | D.4 |
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