A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1536652216190e72f8b0228b04c7eb9e41e3f6c1e90d7image21.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15366522162950121dae001764838805ccb2c9c4429d6image22.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15366522164457f4e5c9966364c4c92ef72ab299f5b30image23.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1536652216579b3c0779d31a5497b92efa67d5b1e76fbimage24.png">
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