【判断题】【消耗次数：1】
把行列式的某一行（列）的各元素乘同一数然后加到另一行（列）对应的元素上去，行列式不变.
①
正确
②
错误
参考答案：
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相关题目
【单选题】
设某行列式的值为D,则该行列式某一行（列）的元素与另一行（列）对应元素的代数余子式乘积之和为
①
0
②
D
③
<img class=jc-formula data-tex=-D src=https://huaweicloudobs.ahjxjy.cn/33E847956B1D57E60FC2B3378188C870.png style=vertical-align: middle;/>
④
不确定
【单选题】
下列表述的行列式的性质错误的是
①
行列式与它的转置行列式相等
②
行列式中某一行(列)的所有元素的公因子可以提到行列式符号的外面
③
若行列式有一行（列）全为零，该行列式的值为零
④
互换行列式的两行（列），其值不变
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17._____ of English is essential for those who apply for the post.
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Good knowledge
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A good knowledge
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Good knowledges
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【单选题】
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pessimistic
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positive
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careless
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carefree
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dangerous water
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/;for
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to; for
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【单选题】
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more interested
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【单选题】
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pulled out
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. pulled up
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pulled down
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pulled off