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" />

（ ）属于变形工具组 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/5c560845dbf2422c87ee3a5e67f68690.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/ba8211e54394467084e55d8c039638f3.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/8abd259feec748b6818447a3039e4b70.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/3b82f4425c304802b45be795ab5bf7bf.png" />

中性水溶液是指（ ）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/9bef71113e73499f9f3d9f877a0d07f3.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/315534da2fa24656b8ac34316eb43211.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/0f25c8c53d964d3290ee60bab0aa7fe7.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/0e9eca0e483743c787605572ed065b97.png" />

<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" />

设系统的初始条件为零，其微分方程为：<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/9c4c212cc1594dd19dcfc992512ba0e1.png" />，则_____。() A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/3f8dd968db6e49f5a261281ea5f038bc.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/a73ceb98e53043eb9817c3014694d0b3.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/cfbf541fa5504f819df5429a3c181a0d.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/404ca95df5b34ade860d159893fbb0e2.png" />

设<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/995e39f9a3eb4d63889fb16f7a71ab39.png" />此复合函数由（ ）简单函数复合而成。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/c05e1e0bb27a44ea9923d749b2a7590d.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/7f6ba3596d1d4a3a8fe2bccb09ef5923.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/47a1f97cbc454d3dad189540f3ae1209.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/61c1ed05a21b47528fcebcfe7ffe85f9.png" />

和逻辑式<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/6e44002682ae467796cf764f95bddba9.png" >表示不同逻辑关系的逻辑式是（）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/2ed596686e0b4888be3e30cf991d4790.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/106e515ddf2e4efaaadb70de431d11ca.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/61241e1bfc1a46c6bf504129ed8c500d.png" > D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/b6133dc7cf894cc586f45f7a945b8325.png" >

下列函数为偶函数的是（ ） A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/f83b65f946b642e1adb5b05ddf035194.png"> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/9c338b8daf4f4732a8a7c28e9b04167e.png"> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/6f65bd2fda1a4b51b6fe3a7d111c92f9.png"> D: <img src="https://file.zhihuishu.com/zhs/doctrans/docx2html/202009/6fc1a95407424b60acf6056c52458442.tiff">

下列运算正确的是（）. A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/b365f98671664fe28462e7f104a04561.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/4b0c61e395884131b3bd01a42cf554f2.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/40f0e907cde84b76bb93fce803d3960c.png" > D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/ce3ec94698c242069f90ba8debd032db.png" >

下列方程中有一个是偏微分方程，它是（） A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/5dda124ea27f4ab08181f464558054d5.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/548cc47b2b2f49989f36b9507bfd4589.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/218ee46dfbd048c2b57cd983a0814ad9.png" > D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202009/f034fb5c91bf48d4b8543c5f5e7058e1.png" >