【简答题】设max Z=3x1+4x2+x3,x1+2x2+x3≤10,2x1+2x2+x3≤16,x1,x2,x3≥0,则在最优基不变时,请用区间表示c1的允许取值范围[ ]
【单选题】Thus Chuang Tzu and Lao Tzu both advocate ()
A.
the good with the beneficial
B.
government through non–government
C.
defense of All–embracing Love
【单选题】甲为杀死乙,向乙家投炸弹,结果炸死乙及乙的妻子,房屋被炸毁,甲的行为属于( )。
【单选题】What is Lao Tzu’s belief?
B.
Education is important
D.
People should learn from nature
【简答题】设max Z=3x1+4x2+x3,x1+2x2+x3≤10,2x1+2x2+x3≤16,x1,x2,x3≥0,则在最优基不变时,请用区间表示b1的允许取值范围[ ]