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【单选题】
If an operating bilge pump is developing good vacuum, but is unable to discharge any water, which of the following problems is the most probable cause? .
A.
The wearing rings are excessively worn
B.
The suction strainer is clogged
C.
The discharge valve is clogged
D.
The shaft is worn
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【多选题】用他人借书卡借书的处理办法怎样呢?
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查看完整题目与答案
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horizontal.
B.
vertical.
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upward sloping.
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downward sloping.
查看完整题目与答案
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违者除责成转借者和借用者检讨外，将停用借阅权限一个月
B.
转借者还须承担由此引起的一切后果，如超期罚款、滞纳金、赔书等后果；
C.
冒用他人校园卡入馆借阅书刊，当即收回该证，并酌情处罚。
查看完整题目与答案
【单选题】In the Stackelberg model
A.
each firm takes the prices charged by its competitors as given
B.
one firm plays a leadership role and its competitor's simply react to the leader's quantity
C.
each firm takes the quantities produced by its competitors as given
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