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【单选题】
The old man is strong enough. He prefers to . [     ]
A.
walking, riding
B.
walk, ride
C.
to walk, ride
D.
walking, ride
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【单选题】Conversation Two 8
A.
Finding another dorm on campus
B.
Sharing a bed with a classmate
C.
Living with a friend for a couple of days
D.
Sharing a private apartment with other students
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A.
als
B.
nach
C.
wie
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A.
select,where,from,order by
B.
select,where,order by,from
C.
select,from,order by,where
D.
select,from,where,order by
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A.
音高
B.
音强
C.
音长
D.
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【判断题】机器学习扩展库sklearn的cluster模块中提供了DBSCAN、KMeans等大量聚类算法的实现。
A.
正确
B.
错误
【单选题】已知三相电源线电压 ,三角形连接对称负载Z=6+j8Ω,则相电流 =( )A
A.
B.
38
C.
D.
22
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