基因治疗指()
A.Southernblotting
B.Westernblotting
C.Northernblotting
D.输入导入了相应外源基因的细胞
E.PCR
参考答案:D
The law passed _____ the retirement of the public. [ ]
A. in answer to
B. in response to
C. in return to
D. in reward to
简述明治宪法的特点。