手拉葫芦主要适用于什么地方？

— Thank you very much.

— ___________________.[ ]

A. That's right

B. The same to you

C. You're welcome

规模化猪场应采用分群、分段、流水式、均衡的（）的生产工艺进行生产。

He is very stubborn, it is impossible to argue _____________ what he doesn’t want to.

A．with him about

B．against him about

C．him into doing

D．him to do

首次使用氧气枕时，将橡胶枕内反复用水冲洗和揉搓，其目的是防止发生

A．食管炎
B．肺炎
C．支气管炎
D．鼻炎
E．咽炎

卡介苗属于

A．灭活疫苗

B．减毒活疫苗

C．类毒素

D．免疫血清

E．免疫球蛋白