file:题型9多元函数求极值.mp4 file:题型4全微分.mp4 file:题型1平面与空间直线.mp4 file:8决策分析.mp4 file:7.2最大流问题.mp4 file:2.2对偶问题基本性质、影子价格.mp4 file:2.1线性规划对偶问题.mp4
file:题型9多元函数求极值.mp4 file:题型4全微分.mp4 file:题型1平面与空间直线.mp4 file:8决策分析.mp4 file:7.2最大流问题.mp4 file:2.2对偶问题基本性质、影子价格.mp4 file:2.1线性规划对偶问题.mp4