题目

如果数据1、2、2、x的平均数与众数相同，那么x等于（    ） A.1          B.2        C.3          D.4 答案：C  They had a wonderful party last night．First, they danced ________, and then they had a ________ talk, laughing merrily． [　　] A．face of face; face to face B．face to face; face-to-face C．face-to-face; face-to-face D．face-to-face; face to face