直流电所引起的电烧伤不易愈合，烧伤处应予（）。

A.碱性烧伤

B.酸性烧伤

C.蛋白质溶解破坏

D.蛋白质凝固坏死

E.照射紫外线、涂龙胆紫

— Were there any dolphins in the aquarium? 　　　　

—  ___________. We didn't see any in it. 　　

[      ]

A. Yes, there were 　　　　　　

B. No, there weren't 　　

C. Yes, there are　　　　　　　

D. No, there aren't