问题目啊，求指教啊

miguel29

The total market value of real estate in Altonville has steadily declined over the past four years. This decline has meant that the overall figure on which the city's property tax is based-the assessed value of that real estate-has also decline. The percentage of assessed value that was paid as property taxes to the city, however, did not change from year to year during this period.

The infomation above most strongly supports which of following?

The amount of revenue that Altonville collected from property taxes was lower last year than it was four years ago.
为什么选这个选项啊，我实在想不通啊。

2，A publisher is now providing university professor with the option of ordering custom textbooks for their course. The professors can edit out those chapters of a book they are not interested in and add material of their own choosing.

The widespread use of the option mentioned above is LEAST likely to contribute to fulfilling which of the following educational objective?

Keeping the textbooks used in university in a course by offering lively, well-written reading assignments.

这个是怎么推导出来的啊？谢谢啊

eshopaholic

地产价格连续四年下降， 房产税率在此期间不变。 可推导出：去年房产税的总收入比四年前低

eshopaholic

Keeping the textbooks used in university in a course by offering lively, well-written reading assignments.

无需推导，无关 -- least likely

eshopaholic

Keeping the textbooks used in university in a course by offering lively, well-written reading assignments.

通过提供生动的阅读任务，继续使用原有课本

miguel29

.......终于明白了，我把这句话，意思理解错了。。