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【单选题】
HXD3C型电力机车牵引电动机是一台( )电动机。A.
直流电动机
B.
脉流电动机
C.
三相鼠笼式异步
D.
伺服电机
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【简答题】A．He should be careful when using his credit cards. B．He should cook by himself. C．He should stop spending money on entertainment. D．He ought to get rid of his car to save money.
【单选题】Why does the man like Thanksgiving?
A.
He can cook delicious meals.
B.
He likes to cook the dinner.
C.
He really wants to meet his family.
D.
He just wants to play with the kids.
【单选题】He/cook all morning.
A.
He have been cooking all morning.
B.
He has been cooking all morning.
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