A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15455300340845759ebfd43e946d5974ed798e12d1ab8image21.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545530034193ae4d38308beb4dc6b8b7475fa4f9cf76image22.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15455300343059e4389e9b033470f9dc92454173eb656image23.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15455300344291bc89e52fc7e4687ac9407e0b4ef67ecimage24.png">
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