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【简答题】
实现异步电动机变频调速有哪些要求?
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皮皮学刷刷变学霸
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【简答题】完成课堂安排的任务1-任务3
【简答题】A．Because he was fooled. B．Because his mouth was burned. C．Because he was deceived by the nobleman. D．Because he was very excited.
【简答题】A．Because they wanted to find something to eat. B．Because they were afraid. C．Because they had to take care of themselves. D．Because they had to look after their farms and families.
【单选题】The values of today's young people differ from ________.
A.
those of their parents
B.
that of their parents
C.
their parents
D.
whose parents
【简答题】A．Because the volcano began on 14th November 1963. B．Because they didn't stop until June 1967—four years later. C．Because they were able to watch the birth of a volcanic island. D．Because they were st...
【单选题】(2016年10月22题)公民的基本权利是指宪法规定的公民享有的基本的、必不可少的权利。公民的基本权利有不同的类别,公民的通信自由和通信秘密属于
A.
人身自由
B.
社会经济权利
C.
政治权利自由
D.
教育科学文化权利
【简答题】A．Because the policeman stopped him. B．Because the driver charged too much. C．Because the driver drove him to a wrong place. D．Because he had been rubbed.
【单选题】People in the 18th and 19th centuries used to sleep about 9.5 hours a night because they had ______.
A.
no drive or ambition
B.
no electric light
C.
the best sleep habits
D.
nothing to do in the evening
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