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">