A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1502159095367bebb368894464cdfb536f8718bbb5b3aimage11.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/150215909552499bfda330f5845be86b5ce1dc890170eimage12.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1502159095600355f74f0e814473d8da96dea9e68ac81image13.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15021590957397985a01562464bc88afe4ba7d1dd1514image14.png">
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