A、<img src="http://s3.qsxt.info/exams/201906/43913a5e-0516-4b1a-ba4f-a9d249a08092.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/9a9151a4-9d5d-4596-afe4-29819c95117b.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/042c0d68-7d4d-4628-91d0-2ba0f7ae8590.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/3738229a-f083-43bd-9dfd-6b6f81d653f1.png"/>
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