A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/152827492177518741cf4ec7c4660bc415909e53b87dfimage42.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528274921870d25aa561c67e4df88fab4bddb34ef6a7image43.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15282749219421d6cdaffadc140de862cc430932fd481image44.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528274922008302587f8e22740dba811635cad15d7e6image45.png">
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