A、<img src="https://learning.mhtall.com/upload/uc_course/10023/1DBC8E954ED6C278390AA7DFF7ECB8B4EA043EEA.jpg" alt="">
B、<img src="https://learning.mhtall.com/upload/uc_course/10023/E24065574FF66A3FD966ED6665CCF6C2ECCDCC5D.jpg" alt="">
C、<img src="https://learning.mhtall.com/upload/uc_course/10023/1EE0308AE6A30821CD32967DD674BFC355BDD0DD.jpg" alt="">
D、<img src="https://learning.mhtall.com/upload/uc_course/10023/5E85F451A104DD20F272F1ACAD69F72B38809A84.jpg" alt="">
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