A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1506653922050ef92daee87f043f7a51128b03a737434.png" alt="上传图片">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15066539281828e8842940938456284a75f6ab65bbbf9.png" alt="上传图片">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15066539339824bce88a05ea84b65b05e1a50dea63ece.png" alt="上传图片">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15066539397674f4dbcd1d2c1450ca55aa28c6a3b01c4.png" alt="上传图片">