单选题
CANCELATION FEES
Days prior to Departure
Percent of Package Price
46 or more
10%
45~31
35%
30~16
50%
15~5
65%
4 or fewer
100%
The table above shows the cancellation fee schedule that a travel agency uses to determine the fee charged to a tourist who cancels a trip prior to departure. If a tourist canceled a trip with a package price of$1,700 and a departure date of September 4, on what day was the trip canceled?
(1)The cancellation fee was $595.
(2)If the trip had been canceled one day later, the cancellation fee would have been $255 more.

【正确答案】 C
【答案解析】[解析] (1)不充分,因为当撤消费用为595美元时,占代办费的比例为[*],根据表格中的数据可知此旅行在31~45天前被取消,但无法得知确切的撤消日期;(2)不充分,因为根据(2)可知晚一天多付的钱占总代办费的[*],结合表格中的数据,不难发现撤消的时间存在两种可能,即出发前的31天,或出发前的16天;而根据(1)+(2)可得撤消旅行的日期必为出发前的第31天,即8月4日。