无菌过滤器的过滤效率为()。
参考答案:99.995%
患者,女,50岁。因肩周炎接受针灸治疗,在针刺过程中突然出现头晕目眩,面色苍白,恶心欲吐,多汗、心慌、四肢发冷。应考虑是()
A.刺伤肺脏
B.晕针
C.刺伤延髓
D.滞针
E.刺伤脊髓
_____ finishing for vacation? [ ]
A. Why don't go
B. Why don't you go
C. Why not you go
D. Why not going