A、<img src="https://learning.mhtall.com/upload/uc_course/10023/1352F78D268023F24FE3477B145F158F76ABC1C6.jpg" alt="">
B、<img src="https://learning.mhtall.com/upload/uc_course/10023/355AB6003397999986CB8B03DC7BAB5926EB1609.jpg" alt="">
C、<img src="https://learning.mhtall.com/upload/uc_course/10023/79C66E9BDB17CF07F1B0985736E556306157DEE0.jpg" alt="">
D、<img src="https://learning.mhtall.com/upload/uc_course/10023/E204429E9E6EEF44167A0E9B8D3F2F8B4C825BAD.jpg" alt="">
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