A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14879906129096691ce7365d0448aad75c1625f57ca99image24.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/14879906129465718b9d15bc04ed9b6a4ba353f08f88eimage25.png"> ;
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1487990612988ab94f08caf05468da4316b8163ebd6d9image26.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1487990613025f1eb477586d84554a59f01f541f82172image27.png">;
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