—_____ is my computer game?
—It's on the bookcase. [ ]
A. What
B. How
C. Which
D. Where
答案:D
甲硫氨酸密码子()
A.AUG
B.GUA
C.UAAUGAUAG
D.AUGUGAUAG
E.AAUAGUGAU
染料包括哪几大类?