您要查找的是不是：
- 紫金牛酸Aardisic acid A
- 紫金牛酸Bardisic acid B
- 紫金牛酸ardisic acid
- 这些受体包括叶绿素的前体原叶绿酸a。These include the chlorophyll precursor protochlorophyllide a.
- 丹参酚酸A在大鼠小肠的吸收动力学研究Studies on the absorptive kinetics of salvianoic acid A in rats' small intestines in vivo
- 不仅A而且not merely A but also B
- 酸化acidification
- 与其说A不如说not so much A as B
- 羧酸carboxylic acid
- A股A-share
- 半胱氨酸cysteine
- 酸洗acid cleaning
- 把A误以为take A for B
- 甘氨酸glycine
- 赖氨酸lysine
- 氨酸amino acid
- 精氨酸arginine (Arg)
- 色氨酸tryptophan
- 核苷酸ribonucleotide
- 丙酮酸pyruvic acid
