A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15282749194982b1e67d82c154f57b461c88859a2eba3image21.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528274919577487d85847e16424fbf4ad1abcd501ef2image22.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528274919646ce3973f77b5b4ba38df47cf09d681c9dimage23.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528274919731cc6198671d1f450aa4c58dd836c82b12image24.png">