There is now strong evidence that chloroplasts and other cell organelles , such as mitochondria , represent prokaryotic organisms that invaded heterotrophic eukaryotic cells early in evolution and are now part of an indispensable symbiotic union ( see endosymbiont theory ) 这恰恰是现在有关叶绿体及一些其他的细胞器如线粒体是被原始的真核细胞吞噬进细胞内，与宿主长期共生而逐渐演化出独立单元的内共生起源学说的重要证据。
Our country is in the process of establishing and perfecting the socialism market economy system . under the condition of the market economy , in order to make the dispersive decision of the market participants go to the “ social efficiency ” direction , it is necessary to set up a self - contained information mechanism , which can lead the market participants to make out the rational economic decisions . if we want to advance the magnificent reform of the modern corporation system , perfect the commission - agent and supervise - motivate system of the modern market economy , we should use the cpa ’ s effective judgement , and at the same time , it urges the development of the cpa ’ s occupation 在现代企业制度下,企业所有者与其他利益相关者对企业的监控更多采取的是间接监控的手段,会计信息也越发成为这些信息的使用者对企业经营者的受托经营责任的履行情况进行监督和评价,进而作出相关决策的重要证据,这显然离不开注册会计师所提供的鉴证服务? ?受托对企业会计信息的合法性、公允性和一贯性进行鉴证,合理保证会计报表使用人确认已审会计报表的可靠程度。
