干制后的肉豆蔻表面呈
B
暂无解析
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
It________asashocktorealizethatIwasnotaloneintheroom.
Hardlyhadhefinishedhisspeech________theaudiencestartedcheering.
设y=y(x)是由方程所确定的隐函数，则 .=
曲线y=x^33x^25x4的拐点坐标为（）