问题
选择题
关于数0，下列几种说法不正确的是（ ）
A．0既不是正数，也不是负数
B．0的相反数是0
C．0的绝对值是0
D．0的倒数是0
答案
A、0既不是正数，也不是负数，是正确的．
B、0的相反数是0，根据相反数的概念，是正确的．
C、0的绝对值是0，是正确的．
D、根据倒数的定义，0是不存在倒数的，是错误的．
故答案为D．
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关于数0，下列几种说法不正确的是（ ）
A．0既不是正数，也不是负数
B．0的相反数是0
C．0的绝对值是0
D．0的倒数是0
A、0既不是正数，也不是负数，是正确的．
B、0的相反数是0，根据相反数的概念，是正确的．
C、0的绝对值是0，是正确的．
D、根据倒数的定义，0是不存在倒数的，是错误的．
故答案为D．
| 选择方框中的句子补全对话，有一项是多余的。 | |
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| A: Good morning, Miss Smith. B: Hi, Sandy. Where have you been? A： l___ B: Really'? That's great! Did you talk with Mark and Judy? A: Yes, but only a few words. And I'm not sure if they could understand me. B：No problem. 2 __ A: But I'm afraid of making mistakes when I speak. B: 3 You should believe in yourself. A: But do you think they like to talk with us beginners? B: Yes, unless they're busy. A: Well, I'm still not so confident. You know my pronunciation is poor. B: 4 Try to talk with them as much as you can. A: All right. 5 1._________2._________3._________4._________5._________ |