题目内容
计算机网络采用________________，而传统电话网络则采用________________。
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英译汉：The companies which fail are those which have scattered their capital, which means that they have scattered their brains also. They have investments in this, or that, or the other, here there, and everywhere. “Don’t put all your eggs in one basket.” is all wrong. I tell you to “put all your eggs in one basket, and then watch that basket.” Look round you and take notice: men who do that don’t often fail. It is easy to watch and carry the one basket. It is trying to carry too many baskets that breaks most eggs in this country. He who carries three baskets must put one on his head, which is apt to fall and trip him up. One fault of the American businessman is lack of concentration.
由n个方程构成的n元线性方程组，系数行列式不等于零，则方程组有唯一解。（ ）
齐次线性方程组若系数行列式等于零，则方程组只有零解。（ ）
辅助生产费用采用交互分配法时,对外分配的费用应是( )。
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