休息痢之所以缠绵难愈，多因（）
A.正虚邪恋
B.瘀血阻滞
C.湿热留滞
D.传导失常
E.痰浊壅阻
参考答案：A, C, D
The recent earthquakes have caused concern because they happen _____ population centers and have caused huge damage.
A．to be hit
B．hitting
C．having hit
D．to have hit
__________把法国大革命推向高潮。美国独立战争胜利后确立____________政治体制。
