成人气管异物窒息的现场急救法有()
A.站立法急救
B.卧位法急救
C.背部叩击法急救
D.口对口人工呼吸
E.迅速撬开病人口取异物
参考答案:A, B, C
There _____ some women in the office just now.[ ]
A. was
B. is
C. were
C. are
长期接触过量短波红外线可以引起的眼睛损伤是
A.电光性眼炎
B.视力下降
C.眼睛干燥
D.雪肓
E.白内障