A、<img src="https://learning.mhtall.com/upload/uc_course/10023/0CA77022A37FBB8829EC14F340B465AE48392EF0.png" alt="">
B、<img src="https://learning.mhtall.com/upload/uc_course/10023/7B7A70C31439A7177F8537B6068BDB10CFADB280.png" alt="">
C、<img src="https://learning.mhtall.com/upload/uc_course/10023/A7D159F6E276EC2CD45E34492C9D9C7EE211BBE9.png" alt="">
D、<img src="https://learning.mhtall.com/upload/uc_course/10023/8CD3A08485402E0EFA36AC7C09AFF02B64021EE4.png" alt="">