A、<img src="http://s3.qsxt.info/exams/201906/331b9e76-2e2d-423d-bb0f-f0446c3af052.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/5fc296c2-818f-4fc4-9ac7-5b789f5237a9.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/13a950f9-79c4-414f-9f43-062fb9cebee1.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/6bad6709-224d-4fc8-a27a-c7d6cddfcb0b.png"/>
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