A、<img src="http://s3.qsxt.info/exams/201906/7b652d12-ed00-4f9d-bd0e-553ecb078fc3.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/f25e223d-4226-4cfa-99c5-59636853a046.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/7827a84d-1051-4f05-9f4d-8d0d57ded421.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/fc7294f3-287c-413a-8e7f-153d3c8632a3.png"/>