【单选题】【消耗次数：1】
CA6140型车床的主轴电机是（??）。??
①
直流电动机
②
三相笼型异步电动机
③
三相绕线转子异步电动机
④
双速电动机?
参考答案：
复制
纠错
相关题目
【简答题】
三相异步电动机的重量和价格约为直流电动机的[填空]。
随机题目
【单选题】
The Government will ___________ its control over economic growth.
①
make
②
do
③
tighten
④
need
【单选题】
I asked the secretary if there were ______ tickets but she had only the expensive ______.
①
one, ones
②
any, one
③
some, ones
④
any, ones
【单选题】
______ David loves his daughters, he is strict with them.
①
When
②
If
③
Since
④
While
【单选题】
I was caught up ___________ conversation with a friend when someone knocked at the door.
①
in
②
at
③
over
④
off
【单选题】
She _____ useful knowledge of the English by careful study.
①
acquired
②
gained
③
sacrificed
④
earned
【单选题】
Problems can ______ when people have no knowledge of law.
①
rise
②
raise
③
arise
④
rose
【单选题】
Many people dream ___________ living on an island in the South Sea.
①
of
②
in
③
over
④
beyond
【单选题】
Be it ever so humble, there is no place like___________ .
①
home
②
hall
③
house
④
hammer