某电器商场销售甲、乙两种品牌空调，已知每台乙种品牌空调的进价比每台甲种品牌空调的进价高20%，用7200元购进的乙种品牌空调数量比用3000元购进的甲种品牌空调数量多2 台．

|-6|的相反数是(   )

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及二个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1）每处错误及其修改均仅限一词；
      2）只允许修改10处，多者（从第11处起）不计分。
    I will share with you true story that happened a couple of day ago. One of my classmates bought a bag of snacks from a food store. A few classmates were then inviting to enjoy the snacks. Unluckily, all of us got poisoned and had stomachaches with their faces pale. They were quickly sent to a nearby hospital. Doctors examined them but gave them some medicine. They were out of danger soon before taking the medicine. This accident makes us to realize the seriousness of the food safe problem. Therefore, I strong suggest that the whole society pays more attention to it.

下列成语与词语意思不接近的是（    ）

已知：如图，在△ABC的中，AD是角平分线，E是AD上一点，且AB：AC=AE：AD．

求证：