A、<img src="https://learning.mhtall.com/upload/uc_course/1843/5678A9DC087885556374147C6124D9167049064C.png" alt="">
B、<img src="https://learning.mhtall.com/upload/uc_course/1843/F50BC69BD78C45B0595029BAD5DCBEAC350E1E4F.png" alt="">
C、 (2R, 3S, 4S)-2,4-二氯-3-戊醇