A、<img src="http://s3.qsxt.info/exams/201906/59f80e94-17a4-436a-a60b-afda2bba029b.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/b4b8d2d7-a94b-484a-8f0c-2aa01862bab4.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/1f109d8b-018a-475b-97c9-e7b8d1ac52c9.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/bb37557b-266e-4838-a61b-8ff77ab91ccc.png"/>