Necessary assumption. Use negation. If you negate B, you have "The scheduled highway projects identified as wasteful in the report WERE MOSTLY projects in districts controlled by the President’s party." If this is true, then less than 50% of the projects that are possible candidates for cancellation are in districts controlled by the rival. However, when the dust settles, 90 percent of the projects EVENTUALLY canceled were in legislative districts controlled by opposition party. Clearly we have a problem - politics is involved in the cancellation, and the main conclusion, which says otherwise, falls apart. -- by 会员 sdcar2010 (2011/6/30 21:09:45)
这才是正解!!!顶一个!! |