题目

如图所示，化简：|a|+|b|﹣|a+b|﹣|a﹣b| 答案：解：∵由题意可知，a＜0＜b，|a|＜b，∴|a|=﹣a，|b|=b，|a+b|=﹣（a+b），|a﹣b|=b﹣a，∴原式=﹣a+b+a+b﹣b+a=a+b--- Does Bill do his new job well?---          his old job. I am afraid there is no hope for him. [     ]A. Not better than  B. No better than   C. Not so well as   D. Not as well as