A、<img src="http://s3.qsxt.info/exams/201906/4f91e1d0-5fff-4a54-a4fe-5e6341d39260.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/0405bf90-46c4-461e-acc0-9424eb080035.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/813d20f8-0fec-4ff9-bac1-ee7b96cf7804.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/562a8366-f78b-4cad-8015-c9c01113f88b.png"/>
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