皮皮学，免费搜题
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【单选题】
下列细胞色素中哪一种是不与蛋白质紧密结合的(游离型)电子传递体:A.
Cytb
B.
Cytc
C.
Cyta
D.
Cytc1
E.
Cyta3
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】圆柱的体积是______的圆锥体积的3倍，所以圆锥体积的公式是______．
【单选题】_______ people went to the concert which was held in Gengsu Theatre ________ the night of April 1 st .
A.
Thousands of; in
B.
Thousand of; on
C.
Many thousand; in
D.
Thousands of; on
【单选题】A company provides its product to customers with and without intermediaries. This kind of distribution channel is called _______.
A.
direct distribution
B.
dual distribution
C.
intensive distribution
D.
indirect distribution
【简答题】学习“圆柱体的体积”时，是把圆柱体转化成学过的______体，并推导出圆柱体体积公式．
【简答题】球的体积公式是：球体体积= 4 3 π r 3 ．请用公式计算直径为2.45米的球的体积（用计算器计算，保留两个有效数字，π取3.14．）
【单选题】_________ people went to the concert that was held in Jinyun Square __________ the night of April 25.
A.
Thousands of; in
B.
Two thousands; on
C.
Thousands of; on
D.
Many thousand; in
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