问题
单项选择题
The state of Michigan now requires sports fans to make an annual ______ of $125 to $500 a seat to keep their end zone perches at Michigan Stadium.
A．tributary
B．attribution
C．contribution
D．distribution
答案
参考答案：C
解析：[分析] 形近识别。 contribution捐款，捐助，贡献；tributary(河川或湖泊)支流；attribution归因；distribution分配，分送。