()是一组数据中出现次数最多的数值,用M表示。
A.众数
B.中位数
C.分位数
D.平均数
参考答案:A
After graduation she reached a point in her career ___ ___ she had to decide what to do.
A.that
B.what
C.which
D.where
铰孔是对淬硬的孔进行精加工的一种方法。