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【判断题】
三相异步电动机能耗制动控制电路有按时间原则控制和按速度原则控制两种。（ ）A.
正确
B.
错误
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举一反三
【简答题】Patriotism makes one ready to ______(为国捐躯). It inspires people to work in joint efforts to defend the country.
【单选题】An asset that is readily convertible into cash is thereby highly liquid.
A.
True
B.
False
【单选题】A highly liquid asset is one that
A.
loses its value.
B.
appreciates over time.
C.
can be quickly turned into the medium of exchange without loss.
D.
cannot be used in financial transactions.
【简答题】Energy is ____ makes one work. A．what B．something C．anything D．that
【单选题】¿Cuánto tiempo dura más o menos el “chūn yùn ”, la mayor migración humana del planeta ?
A.
25 días
B.
30 días
C.
40 días
D.
【单选题】Highly oriented (rod-like) molecules that increase directional strength in polymers.______
A.
Liquid-crystal polymers
B.
Linear polymers
C.
Amorphous polymers
D.
Branched polymers
【简答题】Caution! Highly liquid. (flammable)
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