急性中毒患者处于昏迷状态下不宜采用（）
A.催吐
B.洗胃
C.50%硫酸镁导泻
D.灌肠
E.吸氧
参考答案：A, C
With so many children ____round the table, the food disappeared_______．
A．seating, at no time
B．seated, in no time
C．seated, at no time
D．seating, in no time
幻灯片放映时可按（）键终止放映。
A.Ctrl+F4
B.Esc
C.Ctrl+Shift
D.Ctrl+Enter
