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【判断题】
( )变频器的基本构成由主电路(包括整流器、中间直流环节、逆变器)和控制电路组成。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】It can be inferred from the passage that we need to control noise pollution if______.
A.
we want to stay both psychologically and physically healthy
B.
we don't want to be easy to make angry with others
C.
we want to work hard and cooperate well with each other
D.
we don't want to suffer from serious anxiety and feel uneasy
【简答题】Thread 类有 3 个线程优先级的常量: Thread.MIN_PRIORITY= ;Thread.MAX_PRIORITY= ;Thread.NORM_PRIORITY= 。
【单选题】It can be inferred from the passage that we need to control noise pollution if______.
A.
we want to stay both psychologically and physically healthy
B.
we don't want to be angry with others
C.
we want to work hard and cooperate well with each other
D.
we don't want to suffer from serious anxiety and feel uneasy
【简答题】破釜沉舟
【单选题】Physically we feel comfortable. But ______ ,we suffer a lot.
A.
psychologically
B.
moderately
C.
naturally
D.
precisely
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