单项选择题

Passage One
Questions 26 to 29 are based on the passage you have just heard.

A. It is 1/4 mile longer in summer than in winter.
B. It is safer in winter than in summer.
C. The space between rails gets larger in summer.
D. h is more dangerous in summer than in winter.
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单项选择题
A. When they are working in the isolated Arctic regions B. When they are writing reports in terribly cold weather C. When they are free from work in the isolated Arctic regions D. When they are coming into touch again with the outside world
A. When they are working in the isolated Arctic regions
B. When they are writing reports in terribly cold weather
C. When they are free from work in the isolated Arctic regions
D. When they are coming into touch again with the outside world
单项选择题
A. The drug promoted the country’s export industry. B. The drug had a very bad effect on the country’s economy. C. The drug helped the growth of the country’s economy. D. The drug saved the people from working.
A. The drug promoted the country’s export industry.
B. The drug had a very bad effect on the country’s economy.
C. The drug helped the growth of the country’s economy.
D. The drug saved the people from working.
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