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【单选题】
在填料吸收塔的计算中,表示传质分离任务难易程度的一个量是A.
传质单元数
B.
传质单元高度
C.
传质系数
D.
流体流量
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反馈参考答案：
举一反三
【单选题】We’d say that never before so moving a film as After Shock.
A.
we had seen
B.
had we seen
C.
we have seen
D.
have we seen
【简答题】请将这句话机体组是发动机曲柄连杆,汽油分配系统以及大部分发动机组件的支架。翻译成英文。
【单选题】(Rarely) (we have seen) such an effective actor (as he) has proven himself (to be).
A.
Rarely
B.
we have seen
C.
as he
D.
to be
【单选题】We have participated in several ______ with the new biological agents and have seen some amazing results.
A.
advance
B.
treatment
C.
trials
D.
branches
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