The pivot row must be selected so that all the other basic variables remain positive.
必须选择枢轴行，以便所有其他基本变量保持正数。
"Industry sort" must be selected!
“行业分类”必须选择！
At least one role must be selected.
至少应该选择一个角色。
"Query condition" must be selected!
“查询条件”必须选择！
Finally, the installation path must be selected.
最后，必须选择安装路径。
Invalid permissions setting. At least one role must be selected.
权限设置无效。至少应该选择一个角色。
Invalid permissions setting. At least one role must be selected.
权限设置无效。至少应该选择一个角色。
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