Glycine and succinyl - CoA are precursors of 5 - aminolevulinic acid ( ALA ) biosynthesis.甘氨酸和琥珀酸是红假单胞菌生物转化合成5-氨基乙酰丙酸 ( ALA ) 的前体.Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or...
他在关于地质学的报告中, 也涉及气候问题.In his lecture on geology, he touched on the subject of climate.主修地质学的学生要选修地质学或地理课程.Concentrators in geological sciences elect either geology or geography.他主修地质学.He majors in geology....