扫描二维码，直接登录
题库 / Prep2007E1-PS-159
At a repair shop, the totalcost of a repair consists of the charge for parts and a charge of $22.00 perhour for labor. If the total cost of acertain repair at the shop was $249.75 and the charge for parts was $150.75,then the labor charge was for how many hours of labor?
4.5
5
5.5
6.5
9
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。