三相分离器的投运操作中,三相分离器的工作压力控制在()之间。
A.0.1—0.15
B.0.15—0.45
C.0.45—0.75
D.0.75—1
参考答案:B
---Tom called me up telling me he would not take part in the match.
--- _______is a pity _______ he could not join us.
A.What, that
B.It, that
C.That, which
D.As, /
()联席会议做出的决议或决定应当由联席会议通过。
A、变更
B、撤销
C、交流
D、通报