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【单选题】
三相步进电机的转子齿数为40,则拍通电方式运行时的步距角为多少()。A.
1.5°
B.
3°
C.
9°
D.
4.5°
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反馈参考答案：
举一反三
【简答题】When I met him, I had a lot of anger inside of me. I’ve lived my whole life in Spanish Harlem, but in my neighborhood, there are shoot-ups all the time. I know kids who have been shot or beaten up. I ...
【单选题】—I’ve met him dozens of times, but I still don’t know his name. —I hope this won’t happen again.
A.
twelve
B.
a few
C.
a little
D.
many
【单选题】下列关于低容量性高钠血症对机体的影响，哪项是不正确的
A.
口渴
B.
细胞内液向细胞外液转移
C.
细胞外液容量增加
D.
尿少，尿比重增加
E.
醛固酮和ADH分泌增加
【单选题】Beck does not agree with the interviewer who thinks that the rural life suffers
A.
isolation
B.
insecurity
C.
poverty
D.
crowdedness
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