题目选项分析

Because the collagen fibers in skin line up in the direction of tension, a surgical cut made along these so-called Langer's lines severs fewerfibers and is less likely to leave an unsightly scar.

With the collagen fibers in skin lining up in the direction of tension, surgical cuts made along these so-called Langer's lines sever lessfibers and is less likely to leave an unsightly scar.