急腹症在未明确诊断前应
A．疼痛剧烈时使用小剂量吗啡
B．禁食
C．便秘时低压灌肠
D．半卧位
E．胃肠减压
参考答案：B,D,E
It has been raining every day so far. I hope tomorrow will ________fine.
A．turn to
B．turn out
C．turn into
D．turn up
进度计划编制依据主要有哪些？
