厚度h大于150mm的钢筋混凝土板,其受力钢筋间距不应大于1.5h,且不应大于()mm。
A.150
B.200
C.250
D.300
参考答案:C
The man is hard __.
A.to get along
B.to be got along with
C.to get along with
D.getting along
涂料是涂料生产厂的产品,但仅是涂层的“半所品”,只有()才是最后评价涂料的标准。