蝌蚪的呼吸器官是[ ]
A.肺
B.肺和皮肤
C.鳃
D.皮肤
答案:C
Could you the window? I feel a little cold. [ ]
A. please not to open
B. please not open
C. not please to close
D. please not to close
急进性肾小球肾炎典型的病理改变是()。
A.肾小球内皮和系膜细胞增生
B.肾小球节段性纤维素样坏死
C.新月体性肾炎
D.自金耳形成
E.肾小管萎缩