A:148g/mol
B:24g/mol
C:74g/mol
D:40g/mol
观察下列蛋白质合成示意图,回答问题:(注:甲为甲硫氨酸,丙为丙氨酸)
My mother often cooks _______ for us.
仔细观察漫画《不准,只许》说说漫画的含义。