A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1542881956406340dd0c2d05a46feb19af0f39258e519.png" alt="上传图片">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/154288197516206f428865c8b4ed6a01e806b8e920b96.png" alt="上传图片">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1542882027061a2128a96158f4d0f9993e0b4fb6db264.png" alt="上传图片">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1542882050722ca039c00dd374bfda39770edc23a6f4c.png" alt="上传图片">