题目内容双击单词支持查询和收藏哦～
收藏
纠错
题目材料：
For how many of the years shown were both the median income of families headed by people with graduate degrees and the median income of families headed by people with bachelor's degrees between $60,000 and $70,000?
-
A.Two
-
B.Four
-
C.Six
-
D.Eight
-
E.Ten
B显示答案
