---Do you mind choosing Peter to be the new chairman?

----_______.

A．Of course. He is the best choice.

B．Certainly not. We can’t find a better one.

C．Yes, I do. He is the most suitable person

D．No, I don’t. I don’t think he is the suitable person.

男，42岁，既往体健，2周前健康体检发现脾大。今上午突起呕鲜血200ml，解柏油样大便350ml。

如内科保守治疗后出血停止，长期口服下列哪种药物有可能预防再出血()

A．洛赛克

B．立止血

C．凝血酶

D．西沙比利

E．普萘洛尔(心得安)