题干
—There _______ World Cup in Brazil in 2014. It will be played from June 12 to July 13.
—Yeah!
A：is going to have
B：is going to be
C：will have
D：are going to be
答案(点此获取答案解析）
B
（件）与销售单价
（元）符合一次函数关系：
元，试写出利润