What does the report from NRC indicate?
A.The earth will become warmer.
B.It is somewhat suspicious of Michael Mann's assertion.
C.The earth reaches the highest temperature in the history.
D.The proxy measurements are reliable.
第4题
种质资源保存的方式中,属于就地保存的形式是:()。
A.植物园
B.种质资源库
C.自然保护区
D.种子贮藏库
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