A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528334775957a1e56a73be7e4105beef2ebf2207598bimage29.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15283347760354edc34530a9749d0823f8e628fe06891image30.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15283347761134518b1e24fa445c3ae39cd3f78e430c1image31.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15283347762537d1f60cd39764fb789f881e891470f03image32.png">
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