A、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/2c275dd0-ac4e-4265-b7d7-6d549cbfda8a.jpg"title="1373871837742.jpg" alt="1373871837742.jpg"/>
B、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/ffcf4db1-40a0-4ed2-a261-761598c7e869.jpg"title="1373871872571.jpg" alt="1373871872571.jpg"/>
C、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/1f2383a4-309f-41e5-a0f8-89a87548a500.jpg"title="1373871883009.jpg" alt="1373871883009.jpg"/>
D、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/92f7bc09-4ab0-4296-89c7-1e7b1b0c0ed2.jpg"title="1373871893524.jpg" alt="1373871893524.jpg"/>