A、<img src="http://s3.qsxt.info/exams/201906/8a1d6cb0-66f7-4591-9905-477035d00308.png"/>
B、<a></a><img src="http://s3.qsxt.info/exams/201906/a5cc316b-d3b9-449a-a965-68fd164109cf.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/317c5eb1-4bbc-43f8-b995-a695231ae47a.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/d966fb7b-aa3c-43ae-bd0e-cf08b10cdf84.png"/>
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