下列哪种癌基因的活化可使多种细胞在产生肿瘤的同时伴有诱导转移的活性()
A.Mye
B.Mos
C.Raf
D.Ras
E.P53
参考答案:D
I wonder if your sister will go to Mary’s birthday party.If she_______,so______I.
A.does;will
B.will;am
C.does;do
D.would;will
电力通信直流供电系统主要由哪几部分构成?