防水刚性屋面钢筋间距应为( )。
A.100~150mm
B.100~250mm
C.150~200mm
D.112~200mm
参考答案:D
After you have used the dictionary, please just put it back _____it belongs.
A.where
B.to which
C.what
D.that
列车运行中,发现车机联控(),要立即报告列车调度员或就近车站值班员。
A.不标准
B.通知
C.与行车无关信息
D.重要信息