下列步骤中,不属于目标规划模型图解法的为()。
A.作平面直角坐标系
B.作出目标函数的一族平行线
C.作出目标约束所在直线,标出偏差方向
D.按优先级次序,确定满意解
参考答案:B
— Could you tell me how to get to the town hall, please?
—__________. Maybe you could ask the policeman over there.
A.A piece of cake
B.That depends
C.I don’t care.
D.I don’t know for sure
使用弹簧秤读数时,视线必须与刻度面垂直。[ ]