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【判断题】
刚体绕定轴转动时，构成刚体的所有质点的动能之和，称为刚体的转动动能。A.
正确
B.
错误
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【判断题】一个经济效益好、资产质量总体上优良的企业,也可能个别资产项目质量很差。相反,资产项目的质量比较好一个面临倒闭、资产质量总体上很差的企业,也可能会有个别
A.
正确
B.
错误
【单选题】Distinguished guests and friends, welcome to our school, the ceremony of the 50th Anniversary this morning are our alumni (校友) from home and abroad.
A.
Attend
B.
To attend
C.
Attending
D.
Having attended
【单选题】在转速电流双闭环调速系统中,调节速度给定电压,电机转速不变化。此故障的可能原因是( )。 A.晶闸管触发电路故障 B.PI调节器限幅值整定不当 C.主电路晶闸管损坏 D.电动机励磁饱和
A.
B.
C.
D.
D
【单选题】To welcome the 29th Olympic Games, a lot of money ________ in improving the environment in Beijing. [ ]
A.
take
B.
spend
C.
spent
D.
is spent
【判断题】一个经济效益好、资产质量总体上优良的企业,也可能个别资产项目质量很差。相反,一个面临倒闭、资产质量总体上很差的企业,也可能有个别资产项目的质量较好。 ()
A.
正确
B.
错误
【单选题】The phrase 'bringing the error to the clerk's attention' (Para. 5)means______.
A.
telling the truth to the clerk
B.
offering advice to the clerk
C.
asking the clerk to be more attentive
D.
reminding the clerk of the charged item
【判断题】一个经济效益好、资产质量总体上优良的企业,也可能个别资产项目质量很差。相反,一个面临倒闭、资产质量总体上很差的企业,也可能会有个别资产项目的质量较好。( )
A.
正确
B.
错误
【单选题】Disthinguished guests and friends, welcome to our school! ________the ceremony of the 50th anniversary this morning are our alumni (校友) from home and abroad.
A.
Attend
B.
To attend
C.
Attending
D.
Having attended
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