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【单选题】
探究“绿叶在光下制造淀粉”的实验中，把叶片放在酒精的烧杯中隔水加热的目的是 [ ]A.
分解淀粉
B.
将叶绿素溶解在酒精中
C.
把淀粉消耗掉
D.
将淀粉溶解在水中
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A.
20000
B.
18000
C.
15000
D.
22000
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A.
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B.
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D.
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【单选题】C Iam peter Hodes ,a volunteer stem courier. Since March 2012, I&39;ve done 89 trips of those , 51 have been abroad, I have 42hours to carry stem cells（干细胞）in my little box because I&39;ve got two ice...
A.
provider
B.
delivery man
C.
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D.
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