在校运动会上,拔河比赛正在激烈地进行着,对于势均力敌的两个班级来说,最有希望获胜的是( )
系数化成整数且结果化为最简分式: 0.25a−0.2b0.1a+0.3b =____.
—May I come in?
—Yes, come in. But _______ again.