题目

______ should no longer be their academic performances, but their practical ability.      A. What do students aim at                    B. Which do students aim at      C. What students aim at                       D. Which students aim at 答案：C在数轴上表示下列各数：﹣5，﹣3.5，，，+4，0，并用“＜”号把这些数连接起来．