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【单选题】
对液压系统管理的下列说法正确的是（）A.
液压油酸值增加，颜色变深，至少应更换一半新油
B.
系统初次清洗彻底，检修时严防杂质混入，滤器则很少需要清洗
C.
初次充油后，用泵循环工作一段时间再放气
D.
有水会使液压油氧化变质加快
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举一反三
【单选题】What is the difference between Joost and KaZaA according to Fredrik de Wahl?
A.
KaZaA benefited the industry which it entered.
B.
KaZaA didn't impact the industry which it entered.
C.
Joost doesn't threaten the industry which it's entering.
D.
Joost negatively impacts the industry which it's entering.
【单选题】水泥砂浆采用的水泥，M15及以下强度等级的砌筑砂浆宜选用32．5级的通用硅酸盐水泥或砌筑水泥，水泥用量不应小于（）kg／m。。
A.
200
B.
250
C.
300
D.
350
【单选题】Mark Twain _____ along the Mississippi River, which was _____ to his writing.
A.
was grown up / benefit
B.
brought up / benefit
C.
grew up / of beneficial
D.
was brought up / beneficial
【单选题】Which of the following is true according to the text?
A.
Some Founding Fathers benefit politically from slavery.
B.
Slaves in the old days did not have the right to vote.
C.
Slave owners usually had large savings accounts.
D.
Slavery was regarded as a peculiar institution.
【单选题】面对面处理客户抱怨的时候,如果你的时间非常紧迫而客户却唠唠叨叨的没完没了,你该怎么办( )
A.
以平和的方式让顾客把话说完，并仔细倾听。
B.
礼貌的告诉他，你已经明白了他的意思，请他不用说了。
C.
叫一个没有事情做得同事过来继续听他说话。
D.
任由他唠叨，自己做自己其他的事情。
E.
装作在听他说话，却思考其他的事情
【简答题】She feels great (revere) for her professors.
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