A、<img src="http://s3.qsxt.info/exams/201906/ab0210c9-2784-4536-a11c-65d9b9f81da0.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/e7cf8ec7-1c72-46b9-9f6c-3309f26fea0a.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/125ded54-7c9a-4dba-af83-8c02d7cac722.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/f86c3cea-0efa-4895-b936-ff9a2154b1b7.png"/>
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