Your introduction should direct up to a thesis that organizes the rest of your paper. A thesis statement is a just one-sentence summary within your situation. 很多留学生往往会纠结于代写、代考的价格问题上，总会问出一些说起来好笑，但又富有哲学性的问题，比如代写、代考价格的高低是衡量质量的标准，亦或是优惠大的、单价便宜的代写、代考有着极高的性价比云云。其实这类问题看似可笑，实则揭露了目前... http://research-paper82457.blogkoo.com/new-step-by-step-map-for-research-essay-29957120