单项选择题

A．He has never seen a fossil that old.
B．It could be many millions of years old.
C．It is probably a recent specimen.
D．He will ask the lab how old it is.
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单项选择题
A．Vienna.B．Baghdad.C．India.D．Australia.
A．Vienna.
B．Baghdad.
C．India.
D．Australia.
单项选择题
A．All people are less intelligent in summer than in the other seasons of the year.B．Heat has no effect on people’s mental abilities.C．People living near the equator are the most intelligent.D．Both climate and temperature exert impact on people’s intelligence.
A．All people are less intelligent in summer than in the other seasons of the year.
B．Heat has no effect on people’s mental abilities.
C．People living near the equator are the most intelligent.
D．Both climate and temperature exert impact on people’s intelligence.
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