能促进学生内部学习动机的策略（） ["增强学习自主性","提升学习内容的趣味性","设置高诱惑力的奖励","对学习结果给予合理的反馈"]
准确率是指一个项目内准确文件数与文件总数的百分比。
（）服务于持卡消费。 ["SET证书","SSL证书","VPN证书","IP证书"]
In the book"Nature",Emerson stated that（） ["man.s relationship with nature transcends the idea of usefulness","nature is useful to man","nature is independent of man and has nothing to do with man","nature can only be used by ma"]
SMTP服务器主要是用于（）方面。 ["网页浏览","文件传输","新闻服务","邮件发送"]
自诉
