A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15276477437347e18beef5216447ebb85171a086a9fe1image4.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15276477438431deac65189e54ec9960f0affe8c0dabeimage5.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1527647743960613217088384453c8d9c12ec36bdd34fimage6.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15276477440610d7a77c7f633490087ccd425384934beimage7.png">
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