1：Help_to_please.2:You are smoking too_.You will have to give it up.用代词填空（几道初三的英语题）,刚才打错了，正确的题目如下：1：Help_to_fish，please.2:You are smoking too_.You will have to give it up.

1：Help_to_please.2:You are smoking too_.You will have to give it up.用代词填空（几道初三的英语题）,刚才打错了，正确的题目如下：1：Help_to_fish，please.2:You are smoking too_.You will have to give it up. y (3y^2+8y-3)-6y(3y+2y-1)+9y (y平方+2y)(y平方+2y+2)+1 方程y''=(1+y'*y')/2y的通解 y'=1+y^2 -1+y+20y^2 通分 y+3/y*y-6y+9,1/2y+6,y-1/y*y-9 [(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 已知y=-2,求2y-2/y^2-2y+1+y+1/y-1-y的值 (y-2)(y^2-6y-9)-y(y^2-2y-15),其中y=1/2.先化简再求值. 方程y''-4y'+13y=0的通解方程y''=(1+y'*y')/2y的通解 4y²-4y/y²-2y+1÷(y+1/y-1-y-1/y+1)÷(3y+3) [(-2x-y)^2-(2x+y)(2x-y)]÷2y-1/2y 解方程：3y^2-(2y+1)(y-1)=(y-5)(y+1) 解方程3y^2-(2y+1)(y-2)=(y-5)(y-1)