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【简答题】
变频器多运行,每个频率段由一个端子控制。已知各段频率分别为:5Hz、20Hz、10Hz、30Hz、40Hz、50Hz、60Hz,请设置相关功能参数,并画出变频器的接线图
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举一反三
【简答题】现存著名的私家园林有( )。
【单选题】What will Feifei most probably do when she has a baby?
A.
Go out to work.
B.
Be a stay-at-home mom.
C.
Apply for a part-time job.
D.
Apply for a job in her sister's company.
【简答题】完形填空。 Feifei and her brother are students. They are in the same school. Feifei gets up at five past six. But her brother doesn't get up 1 . So he always has 2 breakfast and comes to school late. Feife...
【单选题】- Happy birthday, Feifei! - _____. [ ]
A.
Thank you
B.
The same to you
C.
You are welcome
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