第2肝门 A.
在腔静脉沟下端 B.
肝静脉出肝入下腔静脉处 C.
沿左纵沟向上后方可找到 D.
被冠状韧带下层遮盖 E.
门静脉入肝处

A．is so high that it causes undue harm to import competing sectors.
B．is so low that the government prohibits its use since it would lose an important revenue source.
C．is so high that it eliminates imports.
D．is so high that it causes undue harm to trade-partner economies.