A、<img src="http://s3.qsxt.info/exams/201906/691e3583-db4a-42fb-9f65-c2f62d55d36f.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/af2c0823-1d7b-4b06-a6ac-17206f0f80ce.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/c7d42506-ece5-46a2-894c-e40e0093b28c.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/b5c82503-c25a-49d6-abac-17adea45b35b.png"/>