单项选择题

Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A. It can be seen from an airplane.
B. It’s most likely polluted.
C. It’s usually a bright green color.
D. The supply of it may be exhausted soon.
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单项选择题
A. Because he has some knowledge of the law.B. Because he once had the same problem.C. Because he is a friend of the owner.D. Because he can bring a lawsuit against the owner.
A. Because he has some knowledge of the law.
B. Because he once had the same problem.
C. Because he is a friend of the owner.
D. Because he can bring a lawsuit against the owner.
单项选择题
A. They occur at regular intervals. B. They can withstand great heat. C. They travel through the Earth’s interior. D. They can record the Earth’s internal temperature.
A. They occur at regular intervals.
B. They can withstand great heat.
C. They travel through the Earth’s interior.
D. They can record the Earth’s internal temperature.
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