A、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/cfe72b35-3a00-4644-b4f6-a5d98c7fa964.jpg"title="1374136223546.jpg" alt="1374136223546.jpg"/>
B、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/b0a1d754-98c5-4c5a-9e50-0bb6cfb17ad1.jpg"title="1374136238921.jpg" alt="1374136238921.jpg"/>
C、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/7047908a-bbc7-41ca-9273-42a2f6607abb.jpg"title="1374136255015.jpg" alt="1374136255015.jpg"/>
D、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/b55666fb-ba74-4d99-a45d-2172c68e1345.jpg"title="1374136274000.jpg" alt="1374136274000.jpg"/>