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【简答题】
标准型练习(新加) 将参考教材中,例 3 的标准型,另外分别用向量形式,矩阵形式来表示。 2 、标准型练习题 将线性规划问题变换成标准型。 3 、解的概念练习题 在下列线性规划问题中,找出满足约束条件的所有基解,指出哪些是基可行解,并目标函数,确定哪一个是最优解。 max z= 2x 1 +x 2 -x 3 s.t. x 1 +x 2 +2x 3 £ 6 x 1 +4x 2 -x 3 £ 4 x 1 , x 2 , x 3 3 0
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【单选题】It can be inferred from the text that at the time of the publication of John Newberry's Tom Telescope in 1760 ______.
A.
there seemed to be no anti-slavery sentiment in England
B.
little was known about the horrors of conditions aboard slave ships
C.
the hero of the book, Tom, became a popular literary character in England
D.
it was generally accepted in England that slavery was irrational and contrary to natural law
【简答题】The points of contention in the violation of privacy rights have been diverse, ranging from the publication of personal secrets, personal background and love affairs, to the publication of pictures wi...
【简答题】The publication of Robert Lowell s Life Studies marked the coming of the age of______,which represents a new mode of perception and a way of writing.
【单选题】The Romantic Period of American literature started with the publication of Washington Irvings______and ended with Whitmans Leaves of Grass.
A.
The Sketch Book
B.
Tales of a Traveler
C.
Rip Van Winkle
D.
A History of New York
【简答题】A.It accelerated the extinction of the Latin language. B.It standardized the publication of grammar books. C.It turned translation into a welcome profession. D.It promoted the growth of national langu...
【单选题】中国中铁股份有限公司旗下的中铁二院集团工程有限责任公司与俄罗斯企业组成的联合体于2015年6月18日同俄罗斯铁路股份公司签署了《高速铁路干线“莫斯科-喀山-叶卡捷琳堡”莫斯科-喀山段工程勘测、区域土地测量设计和建筑用设计文件编制的作业合同》。合同的正式签署标志着中俄高铁合作项目向前迈出了实质性的一步，其目的是（）①提高开放水平，提高国际竞争力和效益②转变对外贸易方式，实施“走出去”战略③实现中国高...
A.
②③
B.
①②
C.
③④
D.
①④
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