According to the author, it was a mistake to think of the Chinese as ______.
A. people who were only good at trade.
B. famous sailors.
C. people who were not accustomed to seas and ships.
D. people who were skillful in boat -building.
查看答案
Professor Harry L. Fisher was asked to ______.
A. help develop a chemical weapon
B. prepare chemical compounds
C. decide the effect of sulfur
D. test a list of 20 compounds
听力原文：M: Mary, have you seen Helen this term？ Isn't she teaching in this school？
W: No, she's fired.
Q: Why doesn't Helen teach here？
(5)
A. Because she is ill.
Because she lost her job.
C. Because she is not a teacher.
D. Because she gets another job.
听力原文：What did the man tell the woman？
(7)
A. The driver was drunk.
B. A man was just crossing the street.
C. The post office did not open.
D. The traffic lights were red.
【C16】
A. stabilities
B. popularities
C. concentrations
D. hierarchies
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