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【判断题】
电动机的过载能力丸是电动机的最大转矩Tmax与电动机额定转矩TN之比。判断对错A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】—_______________________________ —We have three major divisions Operations, Sales and Marketing, Finance and Administration.
A.
How many departments do we have?
B.
Which division are you in?
C.
Which department shows the best?
【单选题】As vascular plants, trees are organized into three major organs: the roots, the stems, and the leaves.
A.
Y
B.
N
C.
NG
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