题目

阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。Pickup Your GameA youth soccer coach, Hugo Grajeda, director of Pro Youth Soccer Academy inChester, New York, shares some tips to help you improveyour soccer skills. Start with basicdrills. Gooutdoors, get a ball and keep it close to your feet, Grajeda says. Ifyou have a backyard, work on shooting. It's a good way of building skills without having thepressure of games. Choose a camp that emphasizes building skills and go to oneof those. There are plenty of camps that b1．y=（2m-1）x3m-2+3是一次函数，则m的值是1．