单项选择题

The author's attitude toward the future robots is ______.

A．cautious
B．optimistic
C．pessimistic
D．doubtful
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单项选择题
The robots in use now can do many jobs ______.
A．independently through its own senses and actions
B．according to the instructions from human workers
C．according to the instructions from computer brain,
D．according to the instructions from communicating device
单项选择题
A humanlike robot developed has the ability ______.
A．to speak and hear
B．to solve problems
C．to see and feel
D．the passage doesn't say
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