阿摩線上測驗
6. Please identify the meso compound(s) in the given chemical structures (I), (II) and (III). 
(A) I only
(B) II only
(C) III only
(D) I and III only
(E) I, II, and III
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統計： A(4), B(1), C(6), D(3), E(5) #3227619
統計： A(4), B(1), C(6), D(3), E(5) #3227619
