—Would you like a cup of tea?

—_____.[ ]

A. I think so                

B. No, thanks

C. That's all right            

D. Yes, OK

门静脉高压合并食管胃底出血，是由于（）

A.凝血机制差

B.静脉曲张后覆盖的黏膜薄

C.易为粗糙食物损伤

D.离开门静脉主干比腔静脉近，压力差大

E.被胃酸返流腐蚀