搜题
问题   更新时间2024/4/15 17:19:00

Scientists calculate the age of the earth according to the following EXCEPT _____.( )
·the processes of atomic changes
·how fast heavenly bodies lose their temperatures
·how long life has existed othe earth
·various diffusioprocesses

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·quite different
·how long life has existed on the earth

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第1题

How long has it beesince life appeared ithe earth( )
·30,000 years
·300 millioyears
·2000 millioyears
·5000
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第2题

I5 billioyears from now, according to Sir James Jeans, the temperature othe earth _____.( )
·may rise sharply
·may
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第3题

The tone of the passage cabe described as _____.( )
·excited
·worried
·pessimistic
·optimistic
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第4题

The passage states that the extent of the course is ______________________.( )
·14 weeks
·4 weeks
·30 weeks
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