A、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/a91e0ab0-595b-413a-bc15-8cf810bd162d.jpg"title="1374136500296.jpg" alt="1374136500296.jpg"/>
B、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/a2b8797a-848f-4802-8fce-f2766c0909a6.jpg"title="1374136515062.jpg" alt="1374136515062.jpg"/>
C、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/13469aaa-e80d-4771-b072-1ea5acc2e733.jpg"title="1374136529468.jpg" alt="1374136529468.jpg"/>
D、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/97d35571-c94e-4d2c-9e98-0b587f8de930.jpg"title="1374136544531.jpg" alt="1374136544531.jpg"/>