各种等渗溶液均能使悬浮于其中的RBC保持正常形态。
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Section ADirections:In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter onAnswer Sheet 1with a single line through the centre.[音频]
A. Questions 1 and 2 are based on the news report you have just heard.A)Land a space vehicle on the moon in 2019.
B)Design a new generation of mobile phones.
C)Set up a mobile phone network on the moon.
D)Gather data from the moon with a tiny device.
2.
A)It is stable.
B)It is durable.
C. It is inexpensive.
D. It is sophisticated.
Questions 3 and 4 are based on the news report you have just heard.
A. It lasted more than six hours.
B. No injuries were yet reported.
C. Nobody was in the building when it broke out.
D. It had burned for 45 minutes by the time firefighters arrived.
4.
A. Recruit and train more firefighters.
B. Pull down the deserted shopping mall.
C. Turn the shopping mall into an amusement park.
D. Find money to renovate the local neighborhood.
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