Carl Sagan believes that Venus might&nb-考呗网

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单选题 Carl Sagan believes that Venus might be colonized from earth because

A． it might be possible to change its atmosphere
B． its atmosphere is the same as the earth's
C． there is a good supply of water on Venus
D． the days on Venus are long enough

参考答案：A进入在线模考

【答案】A。解析：此题考查因果关系。由第二段第一句中的“it will be possible to change the atmosphere of Venus and 80 create a new world．”可知，S0是表示因果的连接词，前因后果。所以正确答案为A。

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