治疗心室纤颤的最有效措施是（）。
A.吸氧
B.镇静
C.静注利多卡因
D.气管内滴注肾上腺素
E.电除颤
参考答案：E
Jane is a nurse in the hospital, ________ she learned in a local medical school.
A．after that
B．after which
C．before that
D．before which
商店有12盒粉笔，每盒8枝，如果每盒装6枝，要装多少盒？列式是 12×8÷6。[ ]
