Not only _____________ vital for reducing fever, but __________ also other things that it can help with.

A．aspirin has proved, are there

B．has aspirin proved, there are

C．has proved aspirin, are there

D．aspirin had proved, there are

流行性出血热的基本病理改变是（）。

A.全身小血管和毛细血管内皮细胞变性坏死

B.肾髓质充血水肿

C.实质脏器的凝固性坏死

D.心肌细胞变性坏死

E.播散性血管内凝血