A、<img src="http://s3.qsxt.info/exams/201906/6294e5ff-83df-4cb2-9fa0-3659ce4b13dc.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/e68b768c-78b7-4df9-9637-49b66a4359bf.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/a41cd3bf-8c86-4fe1-a62f-43054f85625a.png"/>
D、<a></a><img src="http://s3.qsxt.info/exams/201906/d72082b7-b159-4c86-9887-f8448ff06038.png"/>
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