题目

请阅读下面短文，掌握其大意，然后从28－45各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该选项的标号涂黑。 (1) People were asked to comment __28__ scenes from films like Pulp Fiction, TV series like Channel 4’s Brookside and cartoons like South Park. Leeds University concluded that people made a __29__between bad language used in programmes for adults, and those _30__ for children. A. forB. onC. ofD. over A. destinationB. differenceC. extinctionD. distinction A. meant B. provideC. intendD. supply (2) Advertisements ne若关于x的一元二次方程为ax2-3bx-5=0（a≠0）有一个根为x=2，那么4a-6b的值是（　　）A．4B．5C．8D．10