单项选择题

Passage Two What is the great advantage of robots over human workers

A．They are much cheaper than humans.
B．They never complain about the difficulties.
C．They can handle all the problems of the job.
D．They can work for long periods without rest.
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单项选择题
What’s the purpose of Talwar’s study
A．To see how kids respond to unwanted gifts.
B．To test kids’ ability to refuse their dislikes.
C．To study how parents react to kids’ lies.
D．To check how polite the kids are.
单项选择题
After the discussion on invisibility, writers of Heroes decide to ______.
A．extend invisibility to clothes
B．make an invisible field
C．demonstrate the questions in the show
D．leave the questions unanswered
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