—Doctor, it seems that you like to work with animals.

—Yes, I think animals should _______ our friends.

A．regard as

B．be regarded as

C．be regarding with

D．regarded for

促进凝血酶原生成的药物是（）

A、艾叶

B、茜草

C、白茅根

D、大蓟

E、小蓟