判断题

顺序控制流程图转梯形图可采用起保停的方法。( )
正确
错误

答案：正确

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截平面与形体表面的交线称为（）。

答案：正确答案：截交线

单项选择题

The slack variable is （） A. introduced to transform a greater-than-or-equal-to inequality constraint into the equality constraint. B. introduced to relax the integer constraints. C. a decision variable of dual problem. D. introduced to transform a less-than-or- equal-to inequality constraint into the equality constraint.