试题与答案

设A为4×3矩阵,η1,η2,η3是非齐次线性方程组Ax=β的3个线性无关的解,k1

题型:单项选择题

题目:

设A为4×3矩阵,η1,η2,η3是非齐次线性方程组Ax=β的3个线性无关的解,k1,k2为任意常数,则Ax=β的通解为( ).


答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析: 解答如下:根据《高层民用建筑钢结构技术规程》6.3.6条规定,及h=l0即:h≤8826.5mm

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A.根据所给汉语提示,完成下列句子

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87. 她们不想一路乘飞机,而决定先飞到温哥华,再从西海岸乘火车横穿加拿大到达东海岸

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88. 我正感到绝望的时候,一艘船发现了我

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89.事实上,我是偶然在英国上岸的。

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B. 英译汉

90. However,  according to a widely accepted theory, the universe began with a “Big Bang” that threw matter in all directions。

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