包图中使用的虚箭头符号代表（）。
A.链接
B.依赖关系
C.包含关系
D.流向
参考答案：B
—Oh, I'm not feeling well. I think I've got a cold, doctor.
—_____ You'll be better soon. [ ]
A. Fine. How are you?
B. Don't think of it.
C. Never mind. Take care.
D. Take it easy.
具有泻火凉血、活血祛瘀、清泄湿热功效的药物是（）。
A.栀子
B.牡丹皮
C.紫草
D.蒲黄
E.大黄
