题目

All the students went to see with her.  A. what the matter was B. what was the matter  C. what wrong was D. what was the wrong     答案：Bwhat was the matter(with)和what was wrong(with)作宾语从句时语序不变。注意what was the matter和what the matter was含义不同，后者意为“这是什么物质”。  已知：y=(m-2)xm2-5是反比例函数，则m=______．