A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/148453483773490dde3d8675e4f379176a04c567447d7image4.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1484534837887ca35471361714143b24719182b675351image5.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1484534837991acb22e886458462ead767e957c95e23aimage6.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1484534838051a6cef391a89f4a77af0a4fdc85ac7193image7.png">