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【简答题】
资源严重减少的主要常用野生药材物种是
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皮皮学刷刷变学霸
举一反三
【单选题】He didn’t write a single card. So he ____.
A.
Wrote only one
B.
didn’t write even one
C.
wrote just one
D.
wrote all the cards except one
【单选题】He didn’t write a single card. So he ______ .
A.
wrote only one
B.
didn’t write ever one
C.
wrote just one
D.
wrote all the cards except one
【单选题】关于主磁通和漏磁通,说法错误的是
A.
主磁通和漏磁通都穿过主磁极铁芯和电枢铁芯
B.
主磁通的值比漏磁通的值大很多
C.
主磁通和漏磁通都是由同一个磁动势产生的
D.
主磁通能在电枢绕组中感应电动势，而漏磁通不能
【单选题】He didn’t write a single card. So he __________.
A.
wrote only one
B.
Didn’t write even one
C.
wrote just one
D.
wrote all the cards except one
【单选题】He didn’t write a single card. So he __________.
A.
wrote only one
B.
didn't write even one
C.
wrote just one
D.
wrote all the cards except one
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