A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545530037582995d2f7af9f5428681ebaff627022310image57.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545530037678eba3b15838a84f2f9bfc3e4ecf82ff13image58.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545530037776f35e64b665174e2cb3e614b59c7ee13eimage59.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1545530037871ba58afbcc2494841a3fd151001b7d1f6image60.png">
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