单项选择题
[听力原文] W: It’s too bad you are late today, the teacher told us a good story. He said all of us will write a composition on that. M: That means I’ll have to do twice as much work.
A.Indifferent. B.Worried. C.Happy. D.Angry.
A.not as good as the average B.low standard C.low social status D.acceptable
A.In 1995 about 700,000 robots were operating in the industrialized world. B.Why people use the robots is that they are neither dangerous nor unpleasant. C.In medical laboratories, robots can be used to handle Potentially dangerous materials, such as blood or urine samples. D.In other cases, robots are used in repetitive, unchangeable tasks in which human performance might degrade over time.