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【单选题】
若求最大化的线性规划问题为原问题，关于其对偶问题的说法有误的是：A.
其对偶的对偶为原问题
B.
对偶变量的符号取决于原问题的约束方程的符号
C.
对偶问题的约束条件的符号取决于原问题的决策变量的符号
D.
若原问题的决策变量X1号
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】对藏传佛教各派描述正确的有()
A.
宁玛派是历史最悠久的一派,被称为“红教”
B.
格鲁派是在萨迦派的基础上建立起来的
C.
噶当派又称为“花教”
D.
噶举派又称为“白教”
E.
“活佛转世”制度是格鲁派的一大特色
【单选题】Girls are _____ into appropriate ‘ feminine ’ behavior.
A.
socialized
B.
assumed
C.
presumed
D.
achieved
【简答题】A．however B．And C．Therefore D．Furthermore
【简答题】A) however B) moreover C) therefore D) furthermore
【单选题】In the ancient world, as is today, most boys played with some kinds of toys and most girls with another. In societies where social roles are rigidly determined, boys pattern their play after the activ...
A.
their social roles are rigidly determined
B.
most boys would like to follow their fathers’ professions
C.
boys like to play with their fathers while girls with their mothers
D.
they like challenging activities
【单选题】对“活佛转世”描述正确的有（）。
A.
“达赖喇嘛”被认为是观世音菩萨的化身，“班禅”被认为是无量光佛的化身
B.
藏传佛教只有“达赖喇嘛”和“班禅”两个活佛
C.
从明代开始转世灵童的寻找和确认必须经过中央政府认可册封
D.
“达赖喇嘛”意为“大学者”
【简答题】A．However B．While C．Moreover D．Furthermore
【简答题】A．Even B．Therefore C．But D．Furthermore
【简答题】A．Thus B．But C．Whereas D．Furthermore
【单选题】In the ancient world, as is today, most boys played with some kinds of toys and most girls with another. In societies where social roles are rigidly determined, boys pattern their play after the activ...
A.
their social roles are rigidly determined
B.
most boys would like to follow their fathers professions
C.
boys like to play with their fathers while girls with their mothers
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