A) To carry out a scientific survey.C) To rescue two sick A.merican workers.B.)To establish a new research station.D)To deliver urgent medical supplies.4.A) The darkness and cold.C.)The biting winds.B)The heavy snow and fog.D.)The ice all around.

【题目】Questions 3 and 4 are based on the news report you have just heard.3. A) To carry out a scientific survey.C) To rescue two sick
A.merican workers.
B.)To establish a new research station.D)To deliver urgent medical supplies.4.A) The darkness and cold.
C.)The biting winds.B)The heavy snow and fog.
D.)The ice all around.

参考答案与解析：

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