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【单选题】
阀控型锚机的闭式液压系统的高位油箱的作用是_____。A.
为系统补油
B.
容纳系统油温升高时的膨胀量
C.
冷却系统油液
D.
净化系统油
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举一反三
【单选题】The government can't expect the taxpayer to ______ this company out indefinitely.
A.
support
B.
bail
C.
redeem
D.
remove
【简答题】A．When he has to do his work on foot. B．When he has to walk up and down stairs. C．When he is sometimes greeted in an unpleasant way. D．When he has a registered letter.
【判断题】The source country’s right has priority over the taxpayer’s country of residence.
A.
正确
B.
错误
【简答题】A．When he has to do his work on foot. B．When he has to walk up and down stairs. C．When he is sometimes greeted in an unpleasant way. D．When he has a registered letter.
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