题目

如果a与﹣2互为相反数，那么a等于（ ）A. ﹣2 B. 2 C. ﹣ D. 答案：【答案】B【解析】-2的相反数是2，那么a等于2．故选B．--- What color are your shoes ? ---            .A．It`s blackB．They`re black shoesC．They’ re blackD．Black shoes