嗜铬细胞瘤患者高血压危象可发生在哪个时期()
A.硬膜外穿刺时
B.气管插管时
C.静脉穿刺时
D.切除肿瘤时
E.切除肿瘤后
参考答案:A, B, C, D
After the earthquake the first thing the local government did was to provide ____ for the homeless
families. [ ]
A. accommodation
B. occupation
C. equipment
D. furniture
莴笋贮藏过程中常会出现茎部发红,裂球现象和腐烂等,裂球现象出现的原因是()
A、高温
B、高湿
C、冻害