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【单选题】
关门列车中连续连挂不得超过（ ）辆。A.
一
B.
二
C.
三
D.
四
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反馈参考答案：
举一反三
【简答题】把钢经过淬火，再经高温回火的热处理称为（）处理。
【简答题】Internet of Things
【单选题】外板展开图的作用是( )1反映了全船外板的排列,厚度及外板上开口的位置2用于造船与修理时确定船体钢板的规格和数量3可作为施工时的依据
A.
①②③
B.
②③
C.
①②
D.
①③
【简答题】Which of the following statements is wrong about the Internet of Things?A. It includes just about everything that can be equipped with sensors that collect data and connect to the Internet. B. It incl...
【单选题】There are a lot of useful things on the Internet, but________,there is something unhealthy on it. [ ]
A.
by the time
B.
at the same time
C.
all the time
【简答题】外板展开图的作用是( )1反映了全船外板的排列,厚度及外板上开口的位置2用于造船与修理时确定船体钢板的规格和数量3可作为施工时的依据
【单选题】Which statement is wrong about the Internet of Things?
A.
Issues such as privacy, reliability, and control of data still have to be worked out.
B.
Although challenges remain before the Internet of Things is fully realized，it is coming closer and closer to fruition.
C.
IPv4 is enough for the development of the Internet of Things.
D.
The Internet of Things will do more than just alert you to the whereabouts or condition of something.
【单选题】What are the disadvantages of 'Things of Internet' according to Raft Haladjian? 查看材料
A.
Different things can't communicate with each other.
B.
They are too expensive and without utility.
C.
The safety of them can't be ensured.
D.
They may threaten people's privacy.
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