隐患是指技术系统中存在的各种能量形态客观的（）。
A.危险源
B.危险度
C.危险性
参考答案：C
I don't like to travel to big cities because it seems to me that one city is very much like___ ．
A．one
B．another
C．the other
D．others
温经汤证腹满的机理是（）
A.湿阻气机
B.瘀阻气机
C.脾虚不运
D.寒凝气滞
E.肝郁脾虚
