A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1526263682173e3f9125bd6c74b2db3a18abf51b7b25bimage37.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1526266552739c07855f6980545259a5484877e37ad3e.png" alt="上传图片"><br>
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/152626368231186fd021b4db6497999328c41ebb77cf6image39.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/152626656291724895920c3cc4bc083db3c4a58d347d4.png" alt="上传图片"><br>