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>> 成人高等教育 / 管理学原理
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佳题速递：
配制pH为9.0的缓冲溶液应选择( ) A、 NH2OH及其盐（Kb=9.1×10-9） B、 氨水及其盐（Kb=1.8×10-5） C、 醋酸及其盐（Ka=1.75×10-5） D、 甲酸及其盐（Ka=1.77×10-4）无机化学与分析化学 1948年11月，由中国人民解放军华东野战军、中原野战军共同发动参与的战役是A、济南战役B、淮海战役C、平津战役D、辽沈战役中国近现代史纲要 46、The fourth Thursday in November is called Thanksgiving Day. In the United States, it is an annual occasion to show thanks to God for his goodness.
As a historical, national and religious holiday, Thanksgiving Day began with the English in Plymouth Colony. As far back as 1621, after a long bitter winter and the gathering of the first harvest, these early settlers shared a feast with the local Indians and offered prayers of thanksgiving. The first national Thanksgiving Day was proclaimed（颁布） by President Washington on November 26, 1789. President Lincoln revived the custom in 1863.
It was not until 1941 that the U.S. Congress adopted a resolution（决定）, setting the fourth Thursday of November as an annual Thanksgiving Day. Thus what began as a religious celebration of the harvest has since become a nationwide holiday.
Now Thanksgiving Day is usually a family day, celebrated with a traditional turkey dinner and a happy reunion. Schools are closed on Thanksgiving Day and the day after. Many people, including students studying in another state, often travel long distances to spend the holiday at home.统考英语阅读理解 The meeting was held away from the attentions of the media
A.case
B.attention
C.attentions
D.cases
E.成人英语2 4、在Windows资源管理器中选定了文件或文件夹后，若要将它们移动到不同驱动器的文件夹中，操作为______。
A.按下Ctrl键拖动鼠标
B.按下Shift键拖动鼠标
C.直接拖动鼠标
D.按下Alt键拖动鼠标计算机统考 中国沦为半殖民地半封建社会的过程中，最早出现的一个新的社会阶级是A、无产阶级B、民族资产阶级C、官僚买办资产阶级D、城市小资产阶级中国近现代史纲要