—Most people said the film Let The Bullets Fly was wonderful _____ they watched it.—I agree with them, and I like it very much!
A：before
B：if
C：since
D：after
将下列词语正确归类。
辩 审 判 炒 煮 驴
①上下结构：____
②左右结构：____
一列火车，速度提高15%，这里把____看作单位“1”，15%表示____。
