______by Columbus in 1492,the island, or at least the western part of it now known as Haiti, was the scene of some of the most advanced political developments in the western world_________the eighteenth century, whose success_________the labor of half a million slaves

A．Discovered ; well in; rested on

B．Discovered; late; relying on

C．Discovering; well in; counting on

D．Discovering; lately ;depends on

下述哪种肝硬化门静脉高压征最为显著 （）

A.病毒性肝炎肝硬化

B.酒精性肝硬化

C.血吸虫病性肝纤维化

D.原发性胆汁性肝硬化

E.淤血性肝硬化