6、7、8、9度抗震烈度，各种层数的砖混结构房屋必须设置构造柱的_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

6、7、8、9度抗震烈度，各种层数的砖混结构房屋必须设置构造柱的部位是（）

Ⅰ．外墙四角；Ⅱ．较大洞口两侧；

Ⅲ．隔断墙和外纵墙交接处；Ⅳ．大房间内外墙交接处

A. Ⅰ

B.Ⅰ、Ⅲ

C.Ⅰ、Ⅱ、Ⅳ

D.Ⅰ、Ⅱ、Ⅲ

答案

参考答案：C

解析：

参见表B7-2，选自《建筑抗震设计规范》(GBJ11—1989)表5.3.1。

补全对话，情景问答

读一读，给问句选择最佳答语。

( ) 1. Li Ming, why do you wear your boots?
( ) 2. Why is she quiet?
( ) 3. Why don't they drink their tea?
( ) 4. Danny, why do you wash your hands?
( ) 5. Why is she crying?
( ) 6. Why is it cold?
( ) 7. Why is he happy?
( ) 8. Jenny, why are you sitting on the couch?
( ) 9. Mr. Wood, why do you draw a circle?
( ) 10. What do you always do in winter?

A. Because they are dirty.
B. Because it is raining outside.
C. Because my favourite shape is a circle.
D. Because I am tired.
E. Because she hurts her finger.
F. Because it is snowy.
G. Because their tea is too hot.
H. Throw snowballs.
I. Because she is reading a book.
J. Because he has lots of food.

单项选择题

齿轮传动的润滑方式主要取决于齿轮（）的大小。

A、齿轮

B、直径

C、圆周速度

D、齿径