专家写完后我们对作业进行校对，通过turnitin检测确定无抄袭；您收到邮件通知，就上网站查看预览并下载完成作业。 Use the very first name and surname of both of those authors For anyone who is mentioning the get the job done for The very first time while in the prose. 讲诚信、不抄袭，坚持原