【简答题】Task-based Reading. Louis Braille was born in Coupvray, France. He was a very small child. Unluckily, at the age of four, he became blind by accident. Louis began attending school in his town when he ...
【简答题】已知 y=f ( x )是奇函数,且 f ( 3)=7 ,则 f ( -3 )= . 2.已知 y=f ( x )是偶函数,且 f (- 2 )=10,则 f ( 2 )= . 3.已知 y=f ( x )是偶函数,且 x > 0时, y=f ( x )是增函数,则 f ( -3 )与 f ( 2.5 )中较大一个是 .