到这一步你已经进行了研究，并且把发现的问题放到相关背景环境中进行了分析（即提供了背景信息），现在你需要做的是提供解决这个问题的多个备选方案。 Notice: The numbering beneath is simply utilized to help with Guidelines for uploading the sections to Crowdmark for relieve of marking. You need to choose which of these keywords and phrases you think that is most critical to the reasons of the ... http://hectorelpst.blogocial.com/5-Essential-Elements-For-biology-lab-report--44342132