现场浇制的钢筋混凝土基础的混凝土强度不应低于()。
A.C10
B.C15
C.C20
D.C30
参考答案:B
()是工商企业管理的首要职能
A.计划
B.指挥
C.组织
D.控制
---Alice, you didn’t come to Tim’s birthday last night.
---I wished I had, but my parents just simply___ not let me out so late at night.
A.might
B.should
C.would
D.could