豌豆的高茎基因(D)与矮茎基因(d)的根本区别是()
A.分别控制显性和隐性性状
B.所含的密码子不同
C.脱氧核苷酸的排列顺序不同
D.在染色体上的位置不同
参考答案:C
— Is it strange that Rose should marry Henry?
— I _______ you kept it between you and me. [ ]
A. prefer to
B. would like
C. feel like
D. would rather
数字信号的特点是什么?