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【单选题】
蛋白质的等电点是: 答( )A.
①溶液 pH 值等于 7 时溶液的 pH 值
B.
②蛋白质分子呈正离子状态时溶液的 pH 值
C.
③蛋白质分子呈负离子状态时溶液的 pH 值
D.
④蛋白质的正电荷与负电荷相等时溶液的 pH 值
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【单选题】High corporate leaders seem to be ______ promoting diversity so as to be competitive in the world market.
A.
in relation to
B.
in favor of
C.
in contrast to
D.
in excess of
【单选题】High corporate leaders seem to be in favor of promoting diversity so as to ______.
A.
lower the rate of unemployment
B.
win equal political rights
C.
#NAME?
D.
satisfy the demands of businessmen
【简答题】角锥棱镜的特性___________,____________,_______________。
【简答题】计算机病毒的防范应树立（）为主的思想，防止病毒进入自己的计算机系统。
【单选题】High corporate leaders seem to be in favor of promoting diversity so as to_________.
A.
lower the rate of unemployment
B.
win equal political rights
C.
be competitive in the world market
D.
satisfy the demands of businessmen
【单选题】High corporate leaders seem to be in favor of promoting diversity so as to ______.
A.
lower the rate of unemployment
B.
win equal political rights for minorities
C.
be competitive in the world market
D.
satisfy the demands of a growing population
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