A、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/9309b108-4827-45ef-8239-533c2d631912.jpg"title="1374818857488.jpg" alt="1374818857488.jpg"/>
B、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/d76c7005-408d-45b4-8749-2eba2f707841.jpg"title="1374818870473.jpg" alt="1374818870473.jpg"/>
C、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/93933ab6-e976-49fd-a2ca-f37a433d2221.jpg"title="1374818883113.jpg" alt="1374818883113.jpg"/>
D、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/1a4ce456-670a-4bd9-b73d-5a242a1e722a.jpg"title="1374818897207.jpg" alt="1374818897207.jpg"/>