在△ABC中,“”是“△ABC是直角三角形”的( )A. 必要不充分条件B. 充分不必要条件C. 充要条件D. 既不充分也不必要条件 答案:【答案】B【解析】由可知B为直角,但是△ABC是直角三角形不一定是B为直角。在△ABC中,由可知B为直角,则△ABC是直角三角形;△ABC是直角三角形,不一定B=90°.所以在△ABC中,“”是“△ABC是直角三角形”的充分不必要条件.故选B. John thought he was when the manage asked him for the advice one the new product. A.something B.anything C.somebody D.anybody