問題詳情

Around forty years ago, there was a cartoon show on television called The Jetsons. The Jetsons were a family of thefuture. George Jetson went to work in a rocket, and his wife Jane shopped for groceries on television. The Jetsons had ahousekeeper named Rosie. Rosie washed dishes and cleaned the floor, but she wasn’t an ordinary housekeeper. Rosie wasa robot. At that time, some viewers thought the cartoon might predict the real future. In some ways it did. For example,some people shop on line now. But we don’t have robots as housekeepers. At least, not yet.Robots do various jobs today. They are often used in manufacturing. They paint and assemble cars and put togetherelectronic devices. Also, robots are used for jobs that are difficult or dangerous for humans. For instance, they were usedto explore the planet Mars, to investigate the inside of the great pyramids in Egypt, and to search the wreckage ofearthquakes.There ARE robots that can do housework. Several vacuum cleaning robots are available. However, not many peoplebuy these products. Why not? The main reason is cost. These robots are expensive. Another reason is that robot cleanersdon’t always do a good job. A third reason is power. Most of these robots use batteries for power, and the batteries do notlast long without recharging.
43 What was Rosie the Robot’s job on the cartoon show The Jetsons?
(A) To fly rocket cars.
(B) To build other robots.
(C) To buy things on line.
(D) To clean the house.

參考答案

答案：D
難度：簡單0.84
統計：A(1),B(19),C(4),D(126),E(0)

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