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单项选择题


Passage Two
Questions 30 to 32 are based on the passage you have just heard.

A．They carried passengers, but not cargo.
B．They were large, but surprisingly fast.
C．They were the first successful steam-powered ships.
D．They were more reliable than other ships of the 1860’s.
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单项选择题A．Because every species becomes extinct.B．Because humans beings are powerful enough to kill other species.C．Because of over-population.D．Because human being is still a young species though it is exptoiting the environment.

A．Because every species becomes extinct.
B．Because humans beings are powerful enough to kill other species.
C．Because of over-population.
D．Because human being is still a young species though it is exptoiting the environment.

单项选择题A．The effect of ordinary aspects of life on anthropology.B．A good source of information about a society.C．Attitudes toward culture in the 1940’s.D．The relationship between anthropology and military.

A．The effect of ordinary aspects of life on anthropology.
B．A good source of information about a society.
C．Attitudes toward culture in the 1940’s.
D．The relationship between anthropology and military.