题目内容

According to the article, which of the following is NOT true?

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.

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