A、<img src="http://s3.qsxt.info/exams/201906/7c505dfe-7755-4982-9914-5bd178d12874.png"/>
B、<img src="http://s3.qsxt.info/exams/201906/d9a6ef6a-b2cc-487d-8354-021d10aaf5f6.png"/>
C、<img src="http://s3.qsxt.info/exams/201906/23df4b23-0a49-43aa-82d5-52df0514ac46.png"/>
D、<img src="http://s3.qsxt.info/exams/201906/e427cc86-969d-419b-8056-64093c458da5.png"/>