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【简答题】
15 以下对人地关系理解正确的是( )
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举一反三
【单选题】Carol thinks that political problems
A.
don't get reported in the way they should be reported
B.
are not really interesting for most people
C.
are presented well by TV reporters
【单选题】Which of the following is true of Livingston? ______
A.
He thinks he has discovered a new possibility in the link between sun spots and the weather on the Earth.
B.
He has great doubts about the theory that the sun's frequent changes have an influence on the Earth's climate.
C.
He has been recently informed by other scientists of the possibility that more sun spots will appear.
D.
He does not think the causes of the sun spots will be fully revealed by scientists in the near future.
【简答题】一氧气瓶内装有氧气,瓶上装有压力表,若氧气瓶内的容积为已知,能否算出氧气的质量。
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