A、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/ec1323e4-168d-4f16-a610-1a03b4ae1353.jpg"title="1374138756609.jpg" alt="1374138756609.jpg"/>
B、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/74994ee0-b11b-47f9-aa86-99e0fa506170.jpg"title="1374138772734.jpg" alt="1374138772734.jpg"/>
C、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/537dd052-f8d0-4fcd-9ebf-e00cdc00fea8.jpg"title="1374138785906.jpg" alt="1374138785906.jpg"/>
D、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/825c31db-7c75-4755-b9c3-25b61a968677.jpg"title="1374138803062.jpg" alt="1374138803062.jpg"/>