A、<img src="http://s3.qsxt.info/exams/201906/55c263c8-ee95-42e5-8dcf-a05b23e341c2.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/7a19ecac-4fb6-41a2-ab1c-3321010439d2.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/5fdd1db7-6ab1-44c3-8a0c-ddc7fc1f92d4.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/ca15b462-1c1a-4e55-94d1-9e3d023a9c53.png"/>
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