【单选题】Which of the following startling facts or statistics is not appropriate in this introduction to the thesis “cities have a dark side”?Cities have a dark side. Cities take up just ①three percent of the ...
【简答题】Ding says high school and college students accounted for nearly 80 percent of the more than 100 operations he did in July 2010, the majority of whom were female high school graduates and college stude...