高强混凝土施工宜采用强制拌合方式，并运用二次投料法拌合。 - 查题网

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国家开放大学 / 高层建筑施工

高强混凝土施工宜采用强制拌合方式，并运用二次投料法拌合。

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美的客观性是对审美主体的意识而言的。（）美学基本原理

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

JIT生产方式的最终目标是（）。企业管理实务

系统特征方程为，则系统A.稳定B.右半平面闭环极点数Z=2C.临界稳定D.单位阶跃响应曲线为单调指数上升自动控制原理

创业计划书的基本作用不包括（）。 A、检验创业项目是否具有市场价值和可操作性 B、有效帮助创业者筹措创业资金 C、创办、经营和管理企业的行动纲领和方针指南 D、给创业者装点门面创业设计与实务

He _ _ _ _ _ _ in jail because he broke the traffic law last night.人文英语1