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1·When looking for multivitamins check to see that the bottle has a USP (United States Pharmacopeia) or DSVP (Dietary Supplement Verification Program) stamp.

当买综合维生素试剂时，检查瓶底是否有USP（美国药典标准）或DSVP（膳食补充认证项目）的盖章批准。