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【单选题】
当的上极限偏差小于相配合的轴的上极限偏差,而大于相配合的轴的下极限偏差时,此配合的性质是
A.
间隙配合
B.
过渡配合
C.
过盈配合
D.
无法确定
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【单选题】'Would you like to drink milk? Thank you, but just _________.' [     ]
A.
a few
B.
few
C.
a little
【单选题】5mL0.01mol·L -1 的KI溶液与10mL0.01mol·L -1 的AgNO 3 溶液混合,制备AgI溶胶,其电位离子是(    )。
A.
K +
B.
Ag +
C.
NO 3 -
D.
I -
【判断题】槽针的刚性较大,高速时不易产生漏针或错误垫纱。
A.
正确
B.
错误
【判断题】电路的三种状态是:通路、断路和开路。
A.
正确
B.
错误
【单选题】听力原文:M: Just a few years ago, no one knew what an iPod was, but now they've spread like wildfire. W: Yeah, you get it. Even my six-year-old baby sister asked me for one as her birthday present. Q: Wha...
A.
Nowadays an iPod is very precious.
B.
The women's baby-sister is very hard to please.
C.
IPod gains great popularity in recent years.
D.
What the woman will send her sister as a birthday present.
【单选题】在入侵报警系统中,( )是接收报警输出信号后作出警告和处理的装置。
A.
报警探测器
B.
报警控制器
C.
报警执行设备
D.
编码器
【简答题】HYZ—4 代表什么型号的油压装置?
【单选题】听力原文:M: I'd like to fill in this job application. W: All right. It will take just a few minutes. Q: Where does the conversation mostly probably take place? (15)
A.
In a restaurant.
B.
In the hospital.
C.
In a company.
D.
In a store.
【单选题】—How long have you been in this office? —Just a few minutes. My cousins__________ here together with me.
A.
have walked
B.
had walked
C.
walked
D.
have been walking
【单选题】I'm just getting out of the city for a few days ________ some space and clear my head.
A.
gotten
B.
getting
C.
to get
D.
having gotten
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