题目

—I got good grades at the English exam last Monday. —__________.A.It's up to you B.You did a good job C.Good luck to you 答案：【答案】B【解析】句意：——我在上周一的英语考试中取得了好成绩。——你做得很好。考查情景交际。It's up to you这取决于你；You did a good job你做得很好；Good luck to you祝你好运。根据上文“I got good grades at the English exam last Monday.”我在上周一的英语考试中取得了好成绩。可知应该说“你做得很好”，已知：直线l上有两点A，B且AB=4cm，点C也在直线l上且点C到点B的距离为2.5cm，则AC= （    ）。