A、<img src="http://s3.qsxt.info/exams/201906/7a6cfe76-6dbf-45b3-9c6b-c23dc92262df.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/eeb849a3-13e1-48bb-955c-de05001bc135.png"/>
C、<a></a><img src="http://s3.qsxt.info/exams/201906/2f3dcb7d-5a90-4022-bf98-72a27121a10f.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/da78e29c-f73a-4b61-906c-1d40d3427b1f.png"/>