汽轮机正常运行中,凝结器的真空()凝结泵入口的真空。
A、大于;
B、等于;
C、小于。
参考答案:A
---- What an interesting film it is! I really enjoyed it!
----________. I really fell asleep.
A.Yes, you are right
B.No, I don’t think so
C.So it is
D.No, you’re wrong
做一个健康教育计划需要设计者先()。
A.立意
B.调查
C.研究
D.构思
E.总结