疏水器一般靠墙布置，安装时先在疏水器两侧阀门以外适当处设置型_爱下问搜题

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问题单项选择题

疏水器一般靠墙布置，安装时先在疏水器两侧阀门以外适当处设置型钢托架，托架栽入墙内的深度不得小于（）。

A.120mm

B.150mm

C.180mm

D.200mm

答案

参考答案：A

解答题

不计算，下面哪些题商小于1？请画“√”

9.57÷45______

0.765÷27______

20.8÷19______

78÷96______．

选择题

---Your uncle ate nothing this morning, _______?

---No, he didn’t. He got up so late that he hurried to work without breakfast.

A．did he

B．didn’t he

C．does he

D．doesn’t he