A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1542883426637be0b8f8878ea4c22815efc767a9972eb.png" alt="上传图片">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1542883441849284dd69d1e4a40b19d6c21f4fe4332d9.png" alt="上传图片">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15428834573013eaa8cf433ad459b966f37e08b515f05.png" alt="上传图片">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15428834747778ffe7e82cf864a2fa7a2329016dc7630.png" alt="上传图片">