题目

Simon____ to see his grandpa if he_____ a holiday next month.        A. is going, has  B. will go, will have   C. goes, will have    D. goes, has 答案：A若把分式x+3y2x的x、y同时缩小12倍，则分式的值（　　）A．扩大12倍B．缩小12倍C．不变D．缩小6倍