土石方运量为平均运距与()的乘积。
A.土石方调配数量
B.土石方总量
C.土石方调配距离
D.土石方调配
参考答案:A
Tony lost his wallet. He didn’t talk to __________ all the afternoon.
A.anything
B.nothing
C.nobody
D.anybody
选用压力表低压容器选用的精度一般不应低于()
A.2.5级
B.1.5级
C.1级