单项选择题

What can robots do in unpleasant surroundings

A．They can take the lunch breaks.
B．They can have the vocation.
C．They can work 24 hours a day.
D．They can go on strike.
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单项选择题
Which of the following statements is TRUE
A．Robots can think for themselves.
B．Robots can't work 24 hours a day in dangerous places.
C．All robots have a head and a hand.
D．Robots can't feel emotions.
单项选择题
Robots can perform many different tasks by ______.
A．hand
B．arm
C．foot
D．head
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