单项选择题

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

A．Because people might have to migrate there someday.
B．Because it is very much like the earth.
C．Because it is easier to explore than other planets.
D．Because its atmosphere is different from that of the earth.
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单项选择题
A．Why species don’t avoid extinction by adapting.B．Why species become extinct at the rate they do.C．Why humans aren’t extinct.D．How many species aren’t extinct.
A．Why species don’t avoid extinction by adapting.
B．Why species become extinct at the rate they do.
C．Why humans aren’t extinct.
D．How many species aren’t extinct.
单项选择题
A．Colin’s speech was more interesting than any other speakers’.B．Colin’s speech was dull because it was too lengthy and tedious.C．Colin’s speech wasn’t very good but he will do better next time.D．Colin’s speech was good considering the difficulty of addressing so many audience.
A．Colin’s speech was more interesting than any other speakers’.
B．Colin’s speech was dull because it was too lengthy and tedious.
C．Colin’s speech wasn’t very good but he will do better next time.
D．Colin’s speech was good considering the difficulty of addressing so many audience.
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