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【判断题】
CA6140卧式车床主运动链是一条外联系传动链。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】The mice in northern Europe move when ______.
A.
they give birth
B.
the weather is bad
C.
the place gets too crowded
D.
they haven't enough food
【简答题】属于感染性发热的疾病是（ ）
【单选题】What type of behavior did the mice show when certain types of nasal cells were turned off?
A.
normal
B.
funny
C.
not normal
【单选题】—Look at the noisy kids! —Haven’t you heard the saying “When the cat is away, the mice ______?”
A.
play
B.
played
C.
are playing
D.
will play
【简答题】直流电动机主要由____、____、____、____、机壳和端盖等主要部件构成
【简答题】直流电动机主要由( )、( )、机壳、端盖、( )与刷架等组成。
【单选题】The cat______ when it has eaten all the mice and rats.
A.
will eat the cattle in the village
B.
will eat neither cattle nor men
C.
will eat men in the houses
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