题目某农场去年计划生产玉米和小麦共200200200吨,采用新技术后,实际产量为225225225吨,其中玉米超产5%5\%5%,小麦超产15%15\%15%,设该农场去年实际生产玉米xxx吨、小麦yyy吨,则所列方程组正确的是（ ）A.{x+y=200(1+5%)x+(1+15%)y=225\left\{\begin{array}{l}{x+y=200}\\{(1+5\%)x+(1+15\%)y=225}\end{array}\right.{x+y=200(1+5%)x+(1+15%)y=225B.{x+y=225(1−5%)x+(1−15%)y=200\left\{\begin{array}{l}{x+y=225}\\{(1-5\%)x+(1-15\%)y=200}\end{array}\right.{x+y=225(1−5%)x+(1−15%)y=200C.{x+y=200x1−5%+y1−15%=225\left\{\begin{array}{l}{x+y=200}\\{\frac{x}{1-5\%}+\frac{y}{1-15\%}=225}\end{array}\right.{x+y=2001−5%x+1−15%y=225D.{x+y=225x1+5%+y1+15%=200\left\{\begin{array}{l}{x+y=225}\\{\frac{x}{1+5\%}+\frac{y}{1+15\%}=200}\end{array}\right.{x+y=2251+5%x+1+15%y=200知识点：二元一次方程组的应用章节：未标注
