肝硬化的患者有出血倾向主要是由于（）

A.凝血酶原的产生减少

B.血氨过高

C.高胆红素血症

D.腹水

E.末梢血管扩张

[A] boat
[B] bridge
[C] floor
[D] street
[E] window
[F] door
[G] garden

You go into or out of a house through it.