根据《水工建筑物荷载设计规范》，水工建筑物的荷载按作用随时间

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问题多项选择题

根据《水工建筑物荷载设计规范》，水工建筑物的荷载按作用随时间的变异性可分为( )。

A．静态作用荷载

B．永久作用荷载

C．可变作用荷载

D．偶然作用荷载

E．动态作用荷载

答案

参考答案：B,C,E

选择题

A．U=vBl，流过固定电阻R的感应电流由b到d

B．U=vBl，流过固定电阻R的感应电流由d到b

C．U=vBl，流过固定电阻R的感应电流由b到d

D．U=vBl，流过固定电阻R的感应电流由d到b

填空题

用括号内所给的单词的适当形式填空。

1．The Great Wall is a place of _______(interesting) in China.

2．Tomorrow it will be ________(rain).

3．The ________(thank) man was too excited to say a word.

4．— Did you sleep ________(good)

— No, I slept ________(bad)!

5．I was ________(deep) moved by his story.

6．December is the ________(twelve) month of the year.

7．It's a long time since we ________(meet) last year.

8．When he heard the news, he was ________(surprise).

9．She became a teacher in her ________(twenty).

10．It's a ________(please) to work with you.