They preferred ______ in bed rather than _______ horse.

A. to lie, to ride B. lying, riding   C. to lie, ride

肛门直肠周围脓肿的病因病理是（）

A.湿热内生，破损染毒，肺脾两虚

B.湿热内生，肝肾阴虚，脾肾阳虚

C.外感寒湿，内伤生冷，气血两虚

D.外感风热，肝脾不和，燥热内生

E.热结肠燥，气血瘀滞，湿热内生