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【判断题】
给文字做链接可以使用超链接或动作。A.
正确
B.
错误
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【判断题】We have become the most intelt animals in the world because we have used tools for
millions of years.
A.
正确
B.
错误
【单选题】听力原文： In the past few years, millions of Americans have become suddenly enthusiastic about the bicycle as if it were a great new invention. Annual bicycle sales doubled between 1960 and 1970, and ther...
A.
Nearly 7 million.
B.
Nearly 17 million.
C.
Nearly 70 million.
D.
Nearly 77 million.
【单选题】If nothing is done to protect the environment, millions of spedes that are alive today will have become ________ .
A.
deteriorated
B.
degenerated
C.
suppressed
D.
extinct
【单选题】If nothing is done to protect the environment, millions of species that are alive today will have become _____.
A.
deteriorated
B.
degenerated
C.
suppressed
D.
extinct
【简答题】Millions have become members of health clubs and have _____________ health club one of the fastest growing business in the US today. And now the beneficial effects of these changing attitudes and beha...
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