The mother with her little son ____ at my home ____ that snowy night. [ ]

A. were; at

B. was; at

C. were; on

D. was; on

烧伤后肠源性感染的防治原则为

A．防止休克

B．早期肠道喂养

C．合理使用抗生素

D．及时正确处理创面

E．调整肠道微生态平衡，口服双歧杆菌