空肠手术的病人术前准备哪项是必需的()
A.术前1日禁食
B.术前1日洗胃
C.术前1日清洁灌肠
D.术前3日开始口服新霉素
E.术前4~6小时禁水
参考答案:E
机械强度与熄焦车司机的操作无关。
People always interrupted his before he________what he was trying to day.
A.finishes
B.would finish
C.had finished
D.has finished