A、<img src="https://learning.mhtall.com/upload/uc_course/1843/3B51FC7118E977CDD4D603A369A4C456AC6E2155.png" alt="">
B、<img src="https://learning.mhtall.com/upload/uc_course/1843/9CBF0E21FEC0D8B30CF03101F630E0977519AC59.png" alt="">
C、<img src="https://learning.mhtall.com/upload/uc_course/1843/777A7E9A61129603BAF7924D6EA75C6C4377AA1E.png" alt="">
D、<img src="https://learning.mhtall.com/upload/uc_course/1843/4E89C516D078C1B2237F00FFA1998CDFA6D974C4.png" alt="">
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