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>> 河南成教 / 电子商务安全概论
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佳题速递：
【单选题】以分期收款方式销售货物的，按照（ ）日期确认收入的实现。
财税法规专题 回购式选择型重大疾病保险的弊端在于（ ）
国家开放大学 发展中国家在其现代化过程中，不可避免地要从外部输入种种现代化因素，包括经济模式、社会价值观念、发展战略、科学技术等。
社区治理 historic secretlyrestorationwitnessedrouteleadinghonouredsetgrantedcitizenFrederick Douglass was an escaped slave in the movement that fought to end slavery in the United Stales. He became a ( 1 ) voice in the year before the Civil War. A few weeks ago, the National Park Service (NPS) ( 2 ) Douglass’s birth and Black History Month with the reopening of his home at Cedar Hill, a ( 3 ) site in Washington. D.C. The two-story house, which contains many of Douglass’s personal possessions, had undergone a three-year ( 4 ). (Thanks to the NTS website, however, you don’t have to live in the nation’s capital to visit it. Take a tour online.) He was born Frederick Augustus Washington Bailey to a slave mother and a white father he never knew. Douglass grew up to become the first black ( 5 ) to hold a government office — as US minister and consul general to Haiti. As a youth, he never went to school. Educating slaves was illegal in the South, so he ( 6 ) taught himself to read and write. At 21 years old, he escaped from his slave owner to Massachusetts and changed his last name to Douglass, to hide his identity. In the 1850s, Douglass was involved with the Underground Railroad, the system ( 7 ) up by antislavery groups to bring runaway slaves to the North and Canada. His home in Rochester, N.Y. was near the Canadian border. It became an important station on the ( 8 ) , housing as many as 11 runaway slaves at a time. He died in 1895. In his lifetime, Douglass ( 9 ) the end of slavery in 1865 and the adoption of the 15th Amendment to the US Constitution, which ( 10 ) African-Americans the right to vote.大学英语语法 简述当前中国汇率变动对中国经济的影响。 国际金融学 在企业供应物流管理中，选择供应商的方法有直观判断、考核选择、（）和（）。生产物流