A、<img src="http://s3.qsxt.info/exams/201906/3204b9e3-932f-482a-acf6-1293281b8dee.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/b830c89f-66f5-4e1a-83d5-5bc8e61cbaaf.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/a3b5d125-2a96-4b46-b907-44e0a6edb0f6.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/d09d7b70-fbe7-4fa6-916e-b04cf89ba7ce.png"/>