A、<img src="http://s3.qsxt.info/exams/201906/1736bb37-34f9-458c-b38a-789530d72cbb.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/14a46a3c-24d2-49cf-84f9-936625820951.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/66b103d1-3c52-4efc-b1ef-640d2e2f16bd.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/29a3b36f-abf6-4424-ae3d-f6f3bc010d81.png"/>