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【简答题】
离合器基本结构
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皮皮学刷刷变学霸
举一反三
【简答题】企业可以在不同的会计期间随意采用不同的会计处理方法。 （ ）
【单选题】Centrifugal pumps can be designed with a number of impellers _____ to attain a high final delivery pressure.
A.
in series
B.
in parallel
C.
either A or B
D.
None of the above is tree
【单选题】Centrifugal pumps have what advantage（s）over reciprocating pumps ________．
A.
They are less expensive
B.
They are smaller for equivalent pumping ability
C.
They pump more cargo in less time
D.
All of the above
【单选题】our long business relations and our amicable cooperation prospects, we suggest that you accept our terms.
A.
In that
B.
In view of
C.
For which
D.
Because of
【单选题】(99~100共用题干)患儿男,6个月。11月中旬发病,一天前突然发热、咳嗽,随后呕吐3次,大便稀,每天10余次,呈黄色水样,粘液少,无腥臭味。体检:体温39°C,精神稍差,皮肤弹性略差,前囟及眼窝凹陷,四肢温,咽稍充血,心肺检查无异常,大便有少量脂肪球。对该患儿的饮食护理,正确的是
A.
禁食12h
B.
继续母乳喂养
C.
继续添加辅助食品
D.
静脉补充营养、水分
E.
如呕吐明显可鼻饲牛奶
【单选题】Which of the listed statements is correct concerning the starting of centrifugal pumps? .
A.
They should always be started with the discharge valve closed
B.
They should always be started with the discharge valve opened
C.
A priming pump is always required to flood the impeller suction
D.
They should always be started with the sealing line valves closed
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