下列不应预防性应用抗生素的手术是
A.甲状腺癌根治手术
B.腹外疝修补术
C.门静脉高压症分流术
D.结肠癌根治术
E.主动脉瘤切除血管移植术
参考答案:B
看图回答问题。
1. Q: Where is the key?
A: ______________.
2. Q: Where are the books?
3. Q: Where is the eraser?
4. Q: What's on the desk?
5. Q: What's in the case?
世界上最早的信息法产生于17世纪的欧洲。()