对急性颅脑损伤患者应予密切观察,最主要的目的是()。
A.注意血压、脉搏,有无休克出现
B.有无脑水肿发生
C.有无颅内血肿
D.有无颅内感染
E.呼吸道是否通畅
参考答案:C
— Have you ever been to Shanghai?
— Yes. I there with my father last year.
A.went
B.have been
C.have gone
D.has been
根据忌装原则,碳化钙可与()混装
A.木材
B.重烧镁
C.精选铜矿
D.肠衣