排水立管明装时，阀门安装朝向应便于操作和修理。

搜题请搜索小程序“爱下问搜题”

问题判断题

答案

参考答案：对

补全对话，情景问答

I	II
( ) 1. What's that? ( ) 2. Who's that? ( ) 3. What's your name? ( ) 4. Sorry ! ( ) 5. Good evening, Barry!	A. Good evening, Ben! B. My name is Carol. C. Never mind. D. It's letter D. E. It' s my mother.

单项选择题 A1/A2型题

胫骨平台骨折，若检查时发现侧向试验阳性则提示（）

A.半月板损伤

B.前交叉韧带损伤

C.侧副韧带损伤

D.内侧副韧带损伤

E.外侧副韧带损伤