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【判断题】
在完全竞争、垄断竞争、寡头和完全垄断这四种企业类型中,从左到右,竞争是越来越强。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】采集病料时,同一块组织中应包括________和________。
【简答题】阐述明装配电箱的施工程序并提出安装时应注意的问题 。
【单选题】If all other conditions such as bore , stroke speed , and mean effective pressures are equal , a two – stroke /cycle diesel engine will develop approximately---
A.
the same indicated horsepower as a four-stroke/cycle engine
B.
twice the indicated horsepower as a four-stroke/ engine
C.
one half the indicated horsepower as a four-stroke/cycle engine
D.
one power stoke for every two crankshaft revolution
【单选题】What do you imagine to her after this event?
A.
happen
B.
happened
C.
happens
D.
to happen
【单选题】If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two-stroke/cycle diesel engine will develop approximately（）
A.
the same indicated horsepower as a four-stroke/cycle engine
B.
twice the indicated horsepower as a four-stroke/cycle engine
C.
one half indicated horsepower as a four-stroke/cycle engine
D.
one power stroke for every two crankshaft revolutions
【简答题】如果电容的单位为法拉，电压的单位为（），则电场能量的单位为（）。
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