A、<img src="http://s3.qsxt.info/exams/201906/02a33f58-a4c1-41cd-8e3c-fb11bb60f0eb.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/1a4b4f18-5f00-4828-bf52-cc41cd118ac5.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/62c0cfbb-74c2-456a-9e26-b377e8698235.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/1f63f29c-1b4c-49ba-a2d2-87d1ebff0c88.png"/>