A:饿殍鳏寡纶巾肝脑涂地
B:跬步幽咽隼头礼上往来
C:潺头踌躇执拗佛反盈天.
D:桌帏偏辟嬴得不经之谈
空气中体积分数约占78%的气体是( )
63
N____ the girl nor I am from England. We are from China.