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【判断题】
若原问题有最优解，则其对偶问题也一定有最优解。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
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【简答题】Those naughty boys were caught _____________ (在花园偷花).
【单选题】The reason why the toys most boys play with are different from those that girls play with is that ______.
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】He is the only one of those boys__________to take on an additional assignment．
A.
who’s wining
B.
who’re willing
C.
who’s being willing
D.
who’re being willing
【单选题】request 对象中的哪个方法可以将复选框中所有选中的选项值取出
A.
getParameterValues
B.
getParameters
C.
getParameter
D.
getParameterNames
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