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【单选题】
已知规范形式原问题(max)的最中的检验数为(λ1,λ2,...,λn),松弛变量的检验数为(λn+1,λn+2,...,λn+m),则对偶问题的最优()。A.
－(λ1，λ2，...,λn)
B.
(λ1，λ2，...,λn)
C.
－(λn+1，λn+2，...,λn+m)
D.
(λn+1，λn+2，...,λn+m)
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【简答题】A．From the ones they are familiar with to the difficult ones. B．From the short ones to the long ones. C．From the long ones to the short ones. D．From the ones they are confident of to the more difficul...
【简答题】Who is the writer of this short story from which the passage is taken?
【简答题】A.From the ones they are familiar with to the difficult ones. B.From the short ones to the long ones. C.From the complicated ones to the easy ones. D.from the ones they are confident of to the more di...
【判断题】70 年来, 我国成为全世界唯一拥有联合国产业分类中所列全部工业门类的国家,工业增加值从 1952 年的 120 亿元增加到 2018 年的 30 多万亿元。
A.
正确
B.
错误
【单选题】What can we learn from the passage?
A.
People, regardless of their age, are crazy about video games.
B.
Those over 15 can use the machines during the day in most countries.
C.
Schoolchildren in uniforms are not allowed into amusement centers in many countries.
D.
Many adults and children play video games at home.
【单选题】我国成为全世界唯一拥有联合国产业分类中所列全部工业门类的国家,工业增加值从1952年的120亿元增加到2018年的30多万亿元。这表明我国
A.
国力获得显著提高
B.
现代经济特征凸现
C.
夯实国民经济基础
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