如果规定只能使用非门和2输入与非门来实现<img src="http://jgxm-question.oss-cn-beijing.aliyuncs.com/psst/files/00a903743d8947fea932b4c62f1a5553.png?x-oss-process=image/sharpen,200"/>,则正确的逻辑图是 .