题目内容
(请给出正确答案)
提问人:网友maoyao
发布时间:2022-01-06
[主观题]
Amino acid at the isoelectric point (pI) is a(an)
A、nonpolar molecule
B、anionic
C、cationic
D、zwitterion
简答题官方参考答案
(由简答题聘请的专业题库老师提供的解答)
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A、nonpolar molecule
B、anionic
C、cationic
D、zwitterion
A. shown from a brown tower
B. equipped with a fog diaphone
C. lighted 24 hours
D. is 79 feet (24 meters) high
A、Mercaptosylase
B、Cholinesterase
C、Carboxylase
D、Phosphatase
A、organophosphorous compound
B、organic mercury compound
C、organoarsenic compound
D、cyanide
E、sulfonamides
A、growth hormone
B、insulin
C、epinephrine
D、glucagon
E、glucocorticoid
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