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【单选题】
胶体的层结构中吸附层和扩散层合称( )。A.
电位离子层
B.
反离子层
C.
固定层
D.
胶粒
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【简答题】完形填空。 Agatha Christic would never forget the night when she met a robber (抢劫者) many years ago. That evening,she went to a birthday party which 1 until two o'clock in the morning. Agatha walked in the ...
【简答题】完形填空。 Agatha Christic would never forget the night when she met a robber (抢劫者) many years ago. That evening,she went to a birthday party which 1 until two o'clock in the morning. Agatha walked in the ...
【简答题】完形填空。 Agatha Christic would never forget the night when she met a robber(抢劫者) many years ago . That evening, she went to a birthday partly which l until two o'clock in the morning Agatha walked in the...
【简答题】只有在特殊的情况下一年级大学生才被允许补考。
【简答题】家族史(名词解释)
【单选题】假定某保险公司有 1 万份人寿保险保单,假定当年理赔的保单数量满足二项分布,且任何一份保单理赔的几率均为 1‰ ,则理赔保单数的期望值和方差为 ( )
A.
10, 10
B.
1，100
C.
10, 0
D.
10, 9.99
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