下列说法错识的是（） A．相反数等于它自身的数有1个 B．

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问题选择题

下列说法错识的是（）

A．相反数等于它自身的数有1个

B．倒数等于它自身的数有2个

C．平方数等于它自身的数有3个

D．立方数等于它自身的数有3个

答案

答案：C

A、相反数等于它自身的数是0；

B、倒数等于它自身的数有1，-1；

C、平方数等于它自身的数有0，1；

D、立方数等于它自身的数有-1，0，1.

故C错误，本题选C

填空题

《庄子》的哲学思想起源于（），而又有所发展。

填空题

用适当的介词填空。

1.—Where was your sister born? —She was born ______ Shanghai.

2. The date ______ her grandmother's birthday is July 18.

3. Look! There are a lot of birds ______ that tree.

4. How many months are there ______ a year?

5. Kate's kite is ______ that tree. She can't get it down.

6. We have a sports meeting every year ______ school.

7. The shoes ______ the bed are my parents'.

8. Welcome ______ our sports club.

9. Can you take the notebook ______ the reading room for Tom?

10. Her brother was born ______ December 24.