A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528952759399aac11d8f80f04c0dbce025f7aaa68d50image21.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/152895275946705f8cdd5f0cb43f3aa7e2b5ea8cec38fimage22.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528952759552cf4b07d9315f477dbe06654293734d0dimage23.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/152895275963649331c3f45274b328c8f03d58538402aimage24.png">