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A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14990627095596cd8bbb2598a4757b6ceaaeda591f90c.png" alt="上传图片">

B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1499062712571ee68b9430b4d4ce6b5b5284b47a4dbb9.png" alt="上传图片">

C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/149906271542286e5681155fb49d1ad9d898f1189c4aa.png" alt="上传图片">

D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/149906271870811bc29934d7b422984a025f425720675.png" alt="上传图片">