水平干管距房顶的净距不小于()mm。
A.300
B.250
C.200
D.150
参考答案:D
与去年同期比较,今年前5 个月销量增幅度最大的车型是:
A.基本型乘用车
B.交叉型乘用车
C.多功能乘用车
D.运动型多用途乘用车
She ______his number in her phone book to ______that she had got the right number.
A.looked for , be certain
B.picked up , make sure
C.picked out , be sure
D.looked up, make sure