问题
单项选择题 B1型题
不需抗体参与即可杀伤靶细胞的细胞是()。
A.T细胞
B.B细胞
C.NK细胞
D.K细胞
E.树突状细胞(DC.
答案
参考答案:C
不需抗体参与即可杀伤靶细胞的细胞是()。
A.T细胞
B.B细胞
C.NK细胞
D.K细胞
E.树突状细胞(DC.
参考答案:C
补全对话
A; You look smarter than you are in the films. B; ______________小题1:_______________________ A; When did you become an actor? B; _________________小题2:______________________________ A;________________ 小题3:__________________________________ B; Because I like acting. A; Do you think it is a hard job to be an actor? B; Yes, I think so.________ 小题4:______________________ A; Do you live with your family? B; No,___________ 小题5:________ . But I often make phone call to my parents or send e-mails to them. A; I hope you are more successful. B; Thanks a lot. |