作文题 Issue: The effectiveness of a country's leaders is best measured by examining the well-being of that country's citizens.
Argument: The following appeared in a letter from the owner of the Sunnyside Towers apartment complex to its manager. "One month ago, all the showerheads in the first three buildings of the Sunnyside Towers complex were modified to restrict maximum water flow to one-third of what it used to be. Although actual readings of water usage before and after the adjustment are not yet available, the change will obviously result in a considerable savings for Sunnyside Corporation, since the corporation must pay for water each month. Except for a few complaints about low water pressure, no problems with showers have been reported since the adjustment. I predict that modifying showerheads to restrict water flow throughout all twelve buildings in the Sunnyside Towers complex will increase our profits even more dramatically."
阅读一：某个考古学家认为美洲土著和东亚人的起源是一样的。因为最近考古发现，美洲土著的牙齿结构和东亚人接近。非但如此，美洲土著的牙齿结构和非洲人，欧洲人都不相似。之后作者列了两种牙齿的特征：Sinodonty and Sundadonty。其中Sundadonty是某些美洲土著和某些南亚人的一个共同特性。但是考古学家反驳说某些美洲土著和东亚人也享有Sinodonty的特征。最后这位考古学家还是觉得美洲土著和东亚人是同源的。