A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545212080110e596666a4ac147b09b52319e7b3c9478.png" alt="上传图片">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545212095989354c65524060475da98410a37cc61e0e.png" alt="上传图片">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545212115810ead5429f72dd491aa8326613abea769b.png" alt="上传图片">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15452121415473cf56c8b50404429b5a0992dc05458a3.png" alt="上传图片">