栀子、黄连、连翘、竹叶均能治疗的病证是
A．湿热泻痢
B．热结便秘
C．热病心烦
D．阴虚盗汗
E．小儿疳积
参考答案：C
The petrol tank is empty. I _________it up before we left home.
A．had to fill
B．would have filled
C．should have filled
D．could have filled
哪一个不是激励循环圈的四要素（）
A.动力
B.需要
C.满足感
D.聆听
