A、<img src="http://s3.qsxt.info/exams/201906/dbcbb11e-ce24-4628-ac8a-d0af9f252740.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/1f1b897a-e668-4a45-b98b-8df4c16bbc2a.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/a89d9763-25e0-4ce0-a4c7-2fc947d7ab0a.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/13429fb6-2d45-4c33-9cf5-0cf404f4acbf.png"/>