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【单选题】
有关小麦与玉米籽粒叙述正确的是:A.
小麦与玉米籽粒是果实不是种子。
B.
小麦籽粒是果实，玉米籽粒是种子。
C.
小麦籽粒是种子，玉米籽粒也是种子。
D.
小麦籽粒是种子，玉米籽粒是果实。
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举一反三
【单选题】______ kinds of matter in the world.
A.
There is a few million
B.
That there are millions
C.
There are a few million
D.
It is millions
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【单选题】China is one of the few countries in the world that have devoted great efforts to________ world peace.
A.
preserving
B.
conserving
C.
possessing
D.
reserving
【单选题】It can be concluded that
A.
raising the world' s temperature only a few degrees would not do much harm to life on earth
B.
lowering the world' s temperature merely a few degrees would lead many major farming areas to disaster
C.
almost no temperature variations have occurred over the past decade
D.
the world' s temperature will remain constant in the years to come
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