A、<img src="http://s3.qsxt.info/exams/201906/d1204bfe-fd00-4ae2-b7da-9b0b04999a07.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/18cd2793-1357-4ea6-b74a-3d4ccd393d89.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/ac35617c-dc8c-4a79-b59e-0cf33b7ff5ab.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/d9f88210-1dbb-48af-984c-bd9481daa3cb.png"/>