在六阶方阵的行列式中
的符号应该为（）
A: 负号
B: 没有符号
C: 0
D: 正号
的符号应该为（）A: 负号
B: 没有符号
C: 0
D: 正号
举一反三
- 通过点<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/a13927df1bf542dfa036a32b10364f69.png" />的拉格朗日插值基函数<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/65695a42c7a14b649b6aa4fb68f7e499.png" />满足( ) A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/99af333f3e934ef6a75022ee1e728b53.png" />＝1，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/7769611ac5cd4c93975be7c41a49ae71.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/99af333f3e934ef6a75022ee1e728b53.png" />＝1，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/7769611ac5cd4c93975be7c41a49ae71.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/99af333f3e934ef6a75022ee1e728b53.png" />＝0，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/7769611ac5cd4c93975be7c41a49ae71.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/99af333f3e934ef6a75022ee1e728b53.png" />=0，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/f80e8e400f3f4916bcaf6b5fde757f16.png" />
- 在下列的HTML中，哪个可以产生超链接？ A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/a9bcf63958144ed794c2429877db052a.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/5f5d626c8bba4c9486c2455dc0f20be5.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/3a165307757a4da5b4e34381b1fe8cf5.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/334e855f187b4c2684d73890e18d5988.png" />
- 在六阶方阵的行列式中[img=472x95]17d60ca19340e78.png[/img]的符号应该为（） A: 负号 B: 没有符号 C: 0 D: 正号
- <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/48fc4686323b4fc2aed9a5ded068e010.png" />则MnS在盐酸中溶解的平衡常数为（ )。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/92fc7a394f754ea59f5812ddedfa9ca1.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/4f1e00c110584145843649c7c0f0fa55.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/ca9777100e5d4abeaa282239afdb5ee0.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/aacd92054a5745feb6f3c98233158b95.png" />
- 下列式子中，正确的是（）。 A: A+A=A B: A<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/f3126967d9ec4564a40eb6115699ae51.png" >1=<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/0faff7be16814509823804103e6ad7d5.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/5cc39d909e9841baa3de9661f7c75548.png" > D: A<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/f3126967d9ec4564a40eb6115699ae51.png" >0=A