A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1502159095867402deba20d314eb6a9836ea3ca9ceb9eimage15.png">
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15021590959432c8b327d7d2f43d0b77714c6c23afd13image16.png">
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15021590960393189968bf4f342db9f1fd7d7a1dce1a4image17.png">
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/15021590961180901b04ee89148178ab5b3969872430cimage18.png">