问题
单项选择题
白喉计划免疫采用()
A.丙种球蛋白
B.抗毒素
C.类毒素
D.死疫苗
E.活疫苗
答案
参考答案:C
白喉计划免疫采用()
A.丙种球蛋白
B.抗毒素
C.类毒素
D.死疫苗
E.活疫苗
参考答案:C
情景交际,从方框中选择适当的句子填空 | |
B: Yes, please.l want a skirt for my daughter. A: ___2___ B: Green. A: ___3___ It's cheap. B: How much is it? A: ___4___ B: Oh, it's really cheap. But it's a little small for my daughter. A: We have some more skirts there. ___5___ B: OK, thank you. |