A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1524882804304fe9bc2a23f7d4aa7bcf5c2eb349cb51eimage1.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/152488280441594192e4abb38461c9041bfc6d8fc5605image2.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1524882804543ea80407c437949589b4de3a30f2d0eb1image3.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15248828046508e8530fb421e4a5790927c935b055addimage4.png">
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