A、<img src="https://learning.mhtall.com/upload/uc_course/10023/332D0016CAF288A35133C65DD19F23A5A3E125C9.png" alt="">
B、<img src="https://learning.mhtall.com/upload/uc_course/10023/F4FF428F7F5D977BAC01DD2EAC11EA5F671C9B9F.png" alt="">
C、<img src="https://learning.mhtall.com/upload/uc_course/10023/DC445B00C9F255F6E834582953BCB8F7A7693D95.png" alt="">
D、<img src="https://learning.mhtall.com/upload/uc_course/10023/24869EA04BF5FA7570EB0CE3C6CB9CD93F49E0E9.png" alt="">