分析以下类图，指明其中描述的类、接口之间的关系：
（ ）
A: 依赖关系
B: 实现关系
C: 关联关系
D: 泛化关系
（ ）A: 依赖关系
B: 实现关系
C: 关联关系
D: 泛化关系
举一反三
- 在常体力的情况下，平面问题的应力函数与应力分量之间的关系正确的有（ ）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/13db38e0be0f42a8aa8220026ad6d3e5.png">，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/9178e461e0974317b42e0e9b59149047.png">，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/d66f684595a1482283e180c311c9e8f4.png"> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/20a366b5fd844f65a1716a7a6078b968.png">，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/f4a5a69f1a264e5b8f28fa968022cbb0.png">，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/b77e7d17deb548619be88f5ed437af81.png"> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/cb0ce22cc89447b5b3a914b1a55209a0.png">，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/d56afcca319e46a2be256f91ac5e289b.png">，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/d6a4d2e83f9448cdbfec37887ffd53a9.png"> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/1f5fa1a13a4c48698715e2b1814291b4.png">，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/06c0cb7f6e184b18a6b345acff91e4bb.png">，<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/c59f70ea241546dd948d2f09b5821ac6.png">
- 正弦电流通过电感元件时，下列关系中错误的是（ ）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/8415ac5593634c5eaaad4a126350ec19.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/7a783db30af347f1a2078e09b73c3787.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/0108b3dcdc394e0f92f878b4f88ea786.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/7e784a23e8394962a973f26a27bcf4ba.png" /> E: UL=jXLI
- 平差中的拆分关系很有意义，数据运算简化，模型线性化的初值依据。以下拆分哪些正确：（ ） A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/91703a80ef7045a0b94128a67f3e98da.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/b3a32aff4f8c4b2898615cc4bb7c31a3.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/996c2da09f004cd5bb609f1685003ea1.png" />
- 下面和声连接对的是（ ） A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/cfbbaacbd31140caada6de1a82879cf1.jpeg" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/cfbbaacbd31140caada6de1a82879cf1.jpeg" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/cfbbaacbd31140caada6de1a82879cf1.jpeg" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/cfbbaacbd31140caada6de1a82879cf1.jpeg" />
- 双纽线<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/ac4dfd0de9744513843c41341938f31c.png" />所围成的区域面积可用定积分表示为（ ） A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/b3a266adc8704187b18601cd19efc069.png" /> <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/fbc5959fd78d4d09ae216f05e45741c0.png" />. <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/02b5a6e0e400485382b137795ebb9ef1.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/45fb209600124a569d31e4c0ed4264f9.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202102/d5291bc308bc4880919d6f34ce4f7539.png" />