给水管道室内外界线，以建筑物外墙皮（）为界。
A.1.5米
B.2米
C.1米
D.0.5米
参考答案：A
单项选择。
There are many . They are watching TV. [ ]
A. womans and child
B. woman and children
C. women and children
D. women and child
犀角散2功效与作用
