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【单选题】
水泵吸水管中压力的变化可用下述能量方程式表示, =[H SS + ΣH s + ]+ + λ , 式中 + λ 的含义是()A.
气蚀余量
B.
真空表安装点的压 头 下降值
C.
吸水 管中水头损失 泵
D.
壳进口内部的压力下降值
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皮皮学刷刷变学霸
举一反三
【简答题】The forwarders usually book spaces with ocean carrier on behalf of consignor basis on the FCA terms in the sales contract made by the consignor as the seller with the buyer. （ ）
【单选题】The__________ method is more fitted to the explicit presentation of grammar when the basic structure is being identified.
A.
inductive
B.
contrastive
C.
comparative
D.
deductive
【简答题】星期四七选五
【单选题】Karen says that managers should communicate with staff about problems
A.
on an informal basis.
B.
within a consistent timetable.
C.
away from the business premises.
【判断题】The forwarders usually book spaces with ocean carrier on behalf of consignor basis on the FCA TERMS in the sales contract made by the consignor as the seller with the buyer．（ ）
A.
正确
B.
错误
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