腰麻术后应采取（）
A.去枕平卧位
B.平卧位
C.平卧中凹位
D.半卧位
E.高斜坡卧位
参考答案：A
张力式电子围栏的前端导线上带电。（）
Henry______a rich man today if he had been more careful about his investment in the past.
A．would be
B．is
C．will be
D．would have been
