遗传的物质基础是()
A.基因
B.线粒体
C.染色体
D.生殖细胞
E.脱氧核糖核酸
参考答案:A
I noticed the puzzled look on his face, I realized that he didn’t understand me.
A.Although
B.When
C.Unless
D.Until
混捏时间的长短,对混捏质量影响不大。()