A、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/fe1fedf5-cebb-4f5d-8a29-82db12f61823.jpg"title="1374135631750.jpg" alt="1374135631750.jpg"/>

B、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/07d930e2-9a2a-4025-996c-c7b17190e0d7.jpg"title="1374135649562.jpg" alt="1374135649562.jpg"/>

C、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/39b37675-fb16-4da7-aa32-e068b2459d27.jpg"title="1374135666937.jpg" alt="1374135666937.jpg"/>

D、<IMG src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/staticQuestionImg/fa410313-4b53-4214-8dea-e3e1d1af83a8.jpg"title="1374135682656.jpg" alt="1374135682656.jpg"/>