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【单选题】
3流体在作湍流流动时,其质点作不规则的()运动。
A.
垂直
B.
平行
C.
圆周
D.
杂乱
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参考答案:
举一反三
【判断题】皮带浮出式分类装置的工作原理与辊子浮出式分类装置相同,不同之处是辊子浮出式分类装置主滚道中皮带机较窄
A.
正确
B.
错误
【单选题】Mike arrived at the meeting_________ at ten o‘clock——not a minute early or late.
A.
flexibly
B.
loosely
C.
punctually
D.
approximately
【判断题】《宪草修改原则》采用内阁制,总统的权力和尊荣都被极大地削弱。()
A.
正确
B.
错误
【单选题】(p. 26) Yesterday, Mike went to the dentist for his 6-month check-up. Two weeks before he went to the dentist, he called the office to make an appointment. The day before his check-up, the office's re...
A.
 Product
B.
 Personalization
C.
 Process
D.
 Place
E.
 Physical evidence
【判断题】 6 、消毒剂是指能够杀死微生物(包括它们的孢子)的化学物质或几种化学物质的混合物 
A.
正确
B.
错误
【单选题】Did you see Mike at the party? No, ______by the time I arrived.
A.
he had left
B.
he has left
C.
he left
D.
he must leave
【单选题】Mike arrived at the airport at half past eight.
A.
动车站
B.
汽车站
C.
飞机场
【简答题】Make a brife summary of steps to order wine in a restaurant accoring to the video you have watched.
【简答题】Make a brife summary of San Diego's major attractions accoring to the video you have watched.
【简答题】阅读理解。 Tom arrived at the bus station quite early for Paris bus. The bus for Paris would not leave until five to twelve. He saw a lot of people waiting in the station. 1______ There was a group of scho...
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