根据达西定律，渗流速度V为：http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/2301c74d6d70429ebf72979894446455.jpg
举一反三
- 真实速度和渗流速度的关系为：http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/9bb45af5a6ec46a8baacb26ed68b8982.jpg
- 拉普拉斯（Laplace）方程的表达式为（ ）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/26731bcad75f41389448b29292940653.jpg" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/40e7e55a72ee44f59b45d20c84ebe3a6.jpg" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/c65a79ea4d754174b99f34020d6e1735.jpg" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/139e8d3dc37941549e7b6b1731243172.jpg" />
- 质点作半径为R的变速圆周运动时的加速度大小为（v表示任一时刻质点的速率）( ) A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/566625ddf2c44d81babb2fdd6c1215b2.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/bceb93f381844a3988a0291fea01e102.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/e43ab8d2b7b4422a9088f99e594718cb.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/b1a89995aed242d9b12b93495a7ebdae.png" />
- 平面一维稳定渗流的压力分布公式为（ ）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/d08348f3b84f442d87994311dc13686b.jpg" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/2df214c86c5e4103897ba81ce2c6cd98.jpg" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/cc98e4a778cc463c965ac8115e028f86.jpg" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/bc82177c19d44acfa1b365c3d66ed0a4.jpg" />
- 图示单元体应力状态，沿x方向的线应变εx可表示为（ ）。 <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/9fdd7efe625f4047bb61ef38f5aea871.png" /> A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/5da2d36f7ef84cbc8396b1e27b775bf4.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/164a3d85fdb6462696d83d62b92b2435.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/9e37e58e1c12442e8e018c0af637dfdf.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/41fd81417e5f47bea1db35fed7c2c44e.png" />