下列判断中,错误的有( )(1)有立方根的数必有平方根(2)有平方根的数必有立方

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问题:

下列判断中,错误的有(  )
(1)有立方根的数必有平方根
(2)有平方根的数必有立方根
(3)零的平方根、立方根、算术平方根都是零
(4)不论a是什么实数,
3a
必有意义.
A.1个B.2个C.3个D.4个
考点:立方根
题型:选择题

阅读小天地。

      Wang Hong is a Chinese girl. Her mother is a doctor. Her father is a police officer. They're in the U. S.

now. They're having fun in New York. New York is a beautiful city. They buy many clothes and toys there.

Tomorrow they will go to Washington, D. C., the capital city of the U. S.

根据短文内容,回答下列问题。

1. What does Wang Hong's mother do?

______________________________________________________________

2. Is Wang Hong a girl?

______________________________________________________________

3. Where are they now?

______________________________________________________________

4. What do they buy in New York?

______________________________________________________________

5. What's the capital city of the U. S.?

______________________________________________________________

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试用买卖

 

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普遍力量

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小孩降生后的主要传统仪式有哪些?

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按规定,进口货物一般以FOB价格作为完税价格,出口货物一般以CIF价格作为完税价格。( )

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