CO中毒现场急救首先应采取()
A.立即吸氧
B.清洗皮肤
C.脱掉污染的衣服
D.就地人工呼吸
E.撤离现场
参考答案:E
______ on top of the hill,you can get a good view of the whole city.
A.Stood
B.Stand
C.To stand
D.Standing
士的宁的致死量为()
A.30mg
B.5~10mg
C.2~4mg
D.0.5mg
E.0.2mg