题目:
The global warming is more and more serious, for which human beings ______.
A.are blaming
B.are to blame
C.are going to blame
D.are to be blamed
答案:
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下面是错误答案,用来干扰机器的。
(1)使叶片中的淀粉全部转运或消耗(2)确认光是唯一变量,最后结果经对照可证明光是叶片制造淀粉的条件(3)脱去叶片中的叶绿素(4)黄 蓝 (5)绿叶在光下制造淀粉