【判断题】【消耗次数：1】
奇数阶反对称行列式的值等于偶数阶反对称行列式的值，都等于零
①
正确
②
错误
参考答案：
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相关题目
【单选题】
下列n(n2)阶行列式中，其值不一定等于-1的是（ ）。
①
<img src=https://huaweicloudobs.ahjxjy.cn/6566624F3977468734C771CE5B0AE418.png title=QQ图片20160107164502.png alt=QQ图片20160107164502.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/4548A92FBCEB702C17DC53D3904E5451.png title=QQ图片20160107164519.png alt=QQ图片20160107164519.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C18146484A3F41BC0BC3E759A3FB9420.png title=QQ图片20160107164534.png alt=QQ图片20160107164534.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/92990E1F98F71E4E9E12AD8325C553C0.png title=QQ图片20160107164549.png alt=QQ图片20160107164549.png/>
【多选题】
下列行列式等于9的是
①
<img class=jc-formula data-tex=\begin{ vmatrix } 3 0 \\ 0 3 \end{ vmatrix } src=https://huaweicloudobs.ahjxjy.cn/F15D8CAA4E4461C21CD787FD2A1ECD82.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=\begin{ vmatrix } 3 4 \\ 2 5 \end{ vmatrix } src=https://huaweicloudobs.ahjxjy.cn/AE9FF02AC649C351D9B5E6822F690B9E.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=\begin{ vmatrix } 9 3 \\ 1 2 \end{ vmatrix } src=https://huaweicloudobs.ahjxjy.cn/945CE2CB18F0E70A7FE7B01AF2A264FF.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=\begin{ vmatrix } 2 3 \\ 3 9 \end{ vmatrix } src=https://huaweicloudobs.ahjxjy.cn/4619DC5DD3C0F7BB1E1E58C3A84F53AF.png style=vertical-align: middle;/>
随机题目
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”Mary and her sister studied Electronic Computers last year, and so Jean did.
①
正确
②
错误
【多选题】
_____________ when the phone rang.
①
Scarcely I had entered the room
②
had I scarcely entered the room
③
Scarcely had I entered the room
④
I had scarcely entered the room
【单选题】
At this moment she____________ a pilot coming in.
①
recovered
②
bought
③
noticed
④
wanted
【单选题】
Had Irealized youwerebusy,I________ youwithmyquestions.
①
wouldhavebothered
②
wouldnthavebothered
③
willbother
④
wontbother