A、<img src="https://learning.mhtall.com/upload/uc_course/10718/A21EEE262061B44A7715C1CFB5EF8E29A7FD725A.png" alt="">
B、<img src="https://learning.mhtall.com/upload/uc_course/10718/F1E3F060F19B774F514370B1E2624471F1A8D9EA.png" alt="">
C、<img src="https://learning.mhtall.com/upload/uc_course/10718/2026F1D12EBE4168448FDC87106989A1D33D1559.png" alt="">
D、<img src="https://learning.mhtall.com/upload/uc_course/10718/EDE94BA04B8D39D9E312F7860CF773CE95BBC820.png" alt="">
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