A、<img src="http://s3.qsxt.info/exams/201906/e6740ebd-81f1-4e6c-b1f3-b1b8d206ca16.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/abab7001-5c4f-49d5-b83c-1608013d89a7.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/de60e3b5-dd01-4f33-bfee-ddceca34173c.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/c2664425-02e6-417c-8f19-afbcfb47a809.png"/>