A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15592823150356ba3966399f944aaa72137d4b5a85538.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1559282323961d2c8acfb3afb48668f3266a92c450f51.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1559282333975db8e0dde3d9647f6a5e857a9c4757c8e.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/155928235305770c08819291e4f2ab9f248913f4adb64.png">