临床器官移植组织配型主要配型的抗原有()
A.HLA-A
B.HLA-DQ
C.HLA-B
D.HLA-C
E.HLA-DR
参考答案:A, C, E
By the time Jack returned home from England, his son_____ from college.
A.graduated
B.has graduated
C.had been
D.had graduated
在主要的上升趋势线的上侧( ),不失为有效的时机抉择的对策。
A.卖出
B.买入
C.平仓
D.建仓