DB11/419–2007标准《电梯安装维修作业安全规范》规定了电梯在安装中,作业平台的脚手板的宽度应大于()mm以上..
A.50
B.60
C.100
D.150
参考答案:C
Tell the boy the news. He is ______to understand it.
A.enough old
B.enough young
C.old enough
D.young enough
收货人在对入境货物进行报检并取得《入境货物通关单》后,即可对货物进行销售或使用。( )