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题型描述: 判断题
大多数工业机器人满足封闭解的两个充分条件是三个相邻关节轴,交于一点或相互平行。
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佳题速递:
科学与技术的关系是____。 A、 相同的概念 B、 不同的概念 C、 不同的概念,但又存在紧密的联系
形势与政策1
44、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
53、下面属于被动攻击的方式是______。 A.拒绝服务 B.假冒 C.窃听和破译 D.修改信息
计算机统考
If you don’t think it necessary to make _ _ _ _ any missed lessons, speak up now. A、 up for B、 up with C、 up to D、 away for
英语(二)
Only about one out of twelve of the young men and women of this country _ _ _ _ college education. A、 receive B、 receives C、 have received D、 have been received
英语(二)
62、下列设备中属于输入设备的是______。 A.显示器 B.扫描仪 C.打印机 D.绘图机
计算机统考
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