A、<img src="http://s3.qsxt.info/exams/201906/0a2e01fb-72e5-49bc-a8aa-46d300a2b5ca.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/7912af6a-c508-481d-827e-696c034e8645.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/962e95ae-92cb-4a5f-895d-ac1ccf432dff.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/c7c9a4d2-cc8c-4568-ada4-99268c6824ad.png"/>
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