单项选择题

Questions 7 to 10 are based on the following conversation. From the conversation, we learn that the cost of the new wing

A. is more than 90 million.
B. is less than 90 million.
C. is unusually high.
D. is 90 million in total.

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单项选择题

The travel information is intended for

A. all passengers on board the plane.
B. passengers who want to visit the center of Sydney.
C. passengers who visit Sydney for the first time.
D. all crew on board the plane.

问答题

[解析] Robots We are now living in a world in which robots are taking over much of the work. Robots make our cars, fly our planes and work out wages. Robots need some human features to do human work. First of all they need some kind of brain. Their brain is a computer, which has a memory to remember instructions. Another essential feature of many robots is an arm that can do the kind of things that human beings can with their arms. One-armed robots are now coming into widespread use in industry. They are being used, for example, on car assembly lines. The great advantage of robots over human workers is that they can work non-stop for long periods. They never get tired, and always work with the same accuracy. ! They can also work in conditions that humans could not bear. Although robots are rapidly taking over many jobs in industry, they seem a long way from taking over in the home.

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