A、<img src="http://s3.qsxt.info/exams/201906/05e2340b-dff3-48bf-a040-157f289d5b45.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/ac7c3a80-4827-4535-b037-7397ff2b1253.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/712745b6-e32e-48d6-95a9-daee7999b02a.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/e027295b-c3cc-4397-9a7d-5078f7c64028.png"/>