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【单选题】
求解目标函数值最大的线性规划问题中,在确定出基变量的时,根据 min bi / aij 选取入基变量的原因是()A.
确保下一步迭代新得到的 σ j 值都 ≤ 0
B.
确保下一步迭代新得到的 bi 值都 ≤ 0
C.
确保下一步迭代新得到的σj 值都≥0
D.
确保下一步迭代新得到的 bi 值都 ≥ 0
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反馈参考答案：
举一反三
【简答题】简述仓储在现代物流中的主要作用。
【简答题】简述仓储在现代物流中的作用。
【简答题】内部收益率(IRR)
【多选题】Unstructured sequences have important roles in the functions of a protein:
A.
Being able to flex and bend, they can wrap around one or more target proteins like a scarf, binding with both high specificity and low affinity.
B.
By forming flexible tethers between the compact domains in a protein, they provide flexibility while increasing the frequency of encounters between the domains.
C.
They can help scaffold proteins bring together proteins in an intracellular signaling pathway, facilitating interactions.
D.
They also give proteins like elastin the ability to form rubberlike fibers, allowing our tendons and skin to recoil after being stretched.
【单选题】The roles of protein in the body include all but:
A.
immunity
B.
blood clot formation
C.
tissue repair
D.
gas exchange
【简答题】视神经盘无( )能力;眼房水排除受阻,会导致产生( )。
【简答题】A项目原始投资 额 为 150万元,1~10年的净现金流量为29.29万元;B项目的原始投资额为100万元,1~10年的净现金流量为20.18万元。行业基准折现率为10%。 要求:( 1)计算差 额 净现金流量 △NCF; (2)计算差额内部收益率△IRR ; ( 3)用差额投资内部收益率法决策。
【单选题】The roles of protein in the body include all but
A.
blood clot formation
B.
tissue repair
C.
gas exchange
D.
immunity
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