应用荧光染料喹丫因氮芥处理染色体标本,显示出()
A.Q带
B.G带
C.R带
D.C带
E.P带
参考答案:A
---Who ran _____ of all in the sports meeting? ---- Jim did , I think.
A.faster
B.most fast
C.fastest
D.fast
中国社会的主要矛盾有哪些?