题目2单选题
关于高斯定理的理解有下面几种说法,其中正确的是A. <img src="https://tihai-oss-cloud.itihey.com/img/9a72ea7f0fba825f6e677be82995133f.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/214927d5f32efd1997824082406bb3d8.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/2434b7d20539cb7b91ee02bc047f8eaa.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/919c6e98d9dac5699118fc0d792e6148.png">E. <img src="https://tihai-oss-cloud.itihey.com/img/f19ec5555f2d1b0c1aefb4bf44151d4a.png">