A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/160730529744451e2182d5e004de3ad28bf1b8437bbc1.png" style="font-size: 14px;">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/160730531258566f2ab00e9ff4a50ad65ba59adfe1368.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/160730531678566c47a1f5f884af1a914c25b97b60360.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/160730533109433058697bbad4e49a4b1e676811fdaf9.png">
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