The old man died ____ cold ____ a cold night.
A.from; at
B.of;in
C.of;on
D.for; during
答案:C
混合毒类毒蛇咬伤后最危险的情况是()
A.呼吸衰竭
B.急性肾功能衰竭
C.心力衰竭
D.DIC
E.败血症
东罗马帝国定都 ___,此地原称 __。