A、<img src="http://s3.qsxt.info/exams/201906/780c884a-0950-42ca-b10c-11be084b1f1c.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/4835e482-4090-4be7-b613-0174a40c24f7.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/f75c6cda-dc28-4fec-b7d3-f3aaa6095e81.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/f06c68a9-9748-4dad-a832-9a90b06c6c80.png"/>
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