A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1543543800788085870f925e344b6b1de73ab7bdacbc3image1.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1543543800893ee5de424168446c5912b29fc1a83cc7dimage2.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1543543801004234d6c1c0a5a4abf96bb2b46d0791193image3.png">
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