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【单选题】
Oil Pollution Regulations require any transfer or discharge of oil or oily mixtures to be recorded in theA.
bridge log
B.
Master's log
C.
engine room log
D.
oil record
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皮皮学刷刷变学霸
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【简答题】是物质的摩尔质量。摩尔质量与相对原子质量和相对分子质量的联系是 ,区别是 。Na 2 CO 3 的相对分子质量是 ,它的摩尔质量为 。
【简答题】在计算机系统中，当一个进程获得了CPU资源，则该进程当前处于（ ）状态。
【单选题】He rarely visited his uncle, ___________ ?
A.
Didn’t he
B.
Did he
C.
Doesn’t he
D.
Does he
【单选题】He has a stomachache． He shouldn-t eat __________ for 24 hours．
A.
something
B.
everything
C.
anything
D.
nothing
【判断题】要表示离当前点4单位距离,成37度角的点用4<37。< /div>
A.
正确
B.
错误
【单选题】The other day he ran across one of his friends on the street, whom he ___________for ages.A．hadn’
A.
9. The other day he ran across one of his friends on the street, whom he ___________for ages. A．hadn’t seen
B.
didn’t see
C.
hasn’t seen
D.
doesn’t see