81121的平方根是______．_爱下问搜题

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问题填空题

81

121

的平方根是______．

答案

∵

81

121

=

9

11

，

而

9

11

的平方根即±

3

11

，

∴

81

121

的平方根是±

3

11

．

故答案为±

3

11

．

阅读理解

任务型阅读。

A: Hi, Peter. Can you come to my party this Saturday?
B: Party? What party?
A: It's my 15th birthday.
B: Really? Happy Birthday to you, Donna. I'd love to. What time?
A: At 6 p.m., October 25th, at my home. Do you know my address? No. 108 Green Street. If you can't
find it, give me a call, 24606776. By the way, can you ask Ann to come together?
A: OK, I will. Thanks for asking us.

It's a   1 party.
For whom:   2
Time:   3
Place:   4
Phone number:   4
Come and join us!
                                                       Yours,
                                                       Donna

1. _____ 2. _____ 3. _____ 4. _____ 5. _____

填空题

动画按照传播形式分可以分为（）、（）、（）方式的动画。