A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/153665222079990dfb25f08e3461ab82cf92e0d77a165image56.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15366522208955c259c55a177495295bf27c08d1288d8image57.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1536652220975ba9f8955f3be459a9ec55e4f70b9b53bimage58.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15366522210642ff130e28bbf4e8d81639140efd2dd85image59.png">
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