A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1530763160770550b287546e94345a231c6e9b0bdc0f1image6.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15307631608778fe156b8260a439488270fde6ea8bc29image7.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15307631609695d2b7ad7eecc427689b190c1de70674cimage8.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1530763161049bdfe813d61884b9d8b80b3709b6b6b47image9.png">
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