A、<img src="http://s3.qsxt.info/exams/201906/f7575a1a-4061-499f-9899-56774d098ac8.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/b64dc838-1bc4-4267-bd09-44332da90a7e.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/7e0a5c4b-eb97-48a3-bdb4-a3c31f7b9fab.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/1dda2aaa-9f94-43a6-8ba1-9a8b389a24ab.png"/>