皮皮学，免费搜题
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【判断题】
直流发电机因为有感应电势而输出电压,但直流电动机没有感应电势。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【判断题】Langue is relatively stable and systematic while parole is subject to personal and situational constraints.
A.
正确
B.
错误
【判断题】Langue is subject to personal and situational constraint while parole is relatively stable and systematic.
A.
正确
B.
错误
【判断题】Langue is relatively stable and sysyematic while parole is subject to personal and situational constraints.
A.
正确
B.
错误
【判断题】Langue is relatively stable and systematic while parole is subject to personal and situational constraints.
A.
正确
B.
错误
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