。

A、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/4597eb79-4625-4ce5-9438-ecfc1ecd5532.jpg"title="1373948856531.jpg" alt="1373948856531.jpg"/>

B、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/cb2e69a5-e28b-4ce8-a28a-68f75c7e1831.jpg"title="1373948864906.jpg" alt="1373948864906.jpg"/>

C、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/22fec473-da52-41a9-8a1b-e70028b4446d.jpg"title="1373948874968.jpg" alt="1373948874968.jpg"/>

D、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/8a2fdd9c-ae9c-4e33-bedb-96f2ba1c713e.jpg"title="1373948882687.jpg" alt="1373948882687.jpg"/>