单项选择题

Questions 23-26

A. The advantages of traditional surveying methods.
B. Using satellites to communicate with mountain climbers.
C. Obtaining new information about a mountain.
D. Controlling satellites from the top of a mountain.
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单项选择题
A. Though sunshine is free, we still need to purchase fuel to operate a solar heating system. B. We need to purchase a solar system before we can use the sunshine. C. If we want to use sunshine for the solar heating system, we must buy fuel first. D. It’s not necessary to buy fuel to run a solar heating system.
A. Though sunshine is free, we still need to purchase fuel to operate a solar heating system.
B. We need to purchase a solar system before we can use the sunshine.
C. If we want to use sunshine for the solar heating system, we must buy fuel first.
D. It’s not necessary to buy fuel to run a solar heating system.
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A. Our company will arrange an exhibit for the Science and Technology Week. B. Our company has been upset by the city authorities’ final decision. C. We are displeased with the arrangement of the Science and Technology Week D. We have dissuaded the city authorities from setting up the week’s display.
A. Our company will arrange an exhibit for the Science and Technology Week.
B. Our company has been upset by the city authorities’ final decision.
C. We are displeased with the arrangement of the Science and Technology Week
D. We have dissuaded the city authorities from setting up the week’s display.
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