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File:Choline-cation-3D-balls.png
来自维基百科,自由的百科全书
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File:Choline-cation-3D-balls.png
Description
Choline
-
cation
-
3D
-
balls
.
png
Ball-and-stick model of the
choline
cation
, a water-soluble essential nutrient. The nitrogen atom has a positive