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【单选题】
链传动是由主动链轮、从动链轮和环绕在链轮上的链条组成A.
链传动
B.
V带传动
C.
齿轮传动
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举一反三
【单选题】Although the dream of the home robot has not died, robots have had their greatest impact in factories. Unimate, the first industrial robot, went to work for General Motors in 1961. Even at a time when...
A.
the first robot of the world was designed in 1961 for General Motors
B.
the expensive computing power didn't hinder a robot's efficiency
C.
robots controlled by computers can do most tasks better than humans
D.
human workers often went on a strike when they were not satisfied in the past
【简答题】(2014)internet起源于ARPAnet,它使用的通信协议是__________
【单选题】The goals of this project are to promote the commercialization of home-use robots, whose market is smaller than _______ for industrial robots, and to develop safety technologies and standards. [ ]
A.
it
B.
them
C.
that
D.
one
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