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【判断题】
电容裂相型功率变换器电路是指将整流输出的电压通过双电容裂相形成的电路，其电容同时还起到滤波、存储绕组回馈能量作用。采用这种电路，可对电机的各独立控制，每需要一个二极管。A.
正确
B.
错误
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【简答题】Dr. Levine thinks crime happens more without crowds, which shows crowds have the function of ______.
【简答题】阅读理解 In a new study about the way kids learn math in elementary school, Beilock and Levine found a surprising relationship between what female teachers think and what female students learn: If a femal...
【简答题】What conclusion does Dr. Levine get after examining CCTV data?
【单选题】Mar Levine, ____ scientist at University of Pennsylvania, US, has found that competitive eaters have stomachs that can expand like ____ balloon.
A.
a; a
B.
a; the
C.
a; /
D.
the; a
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