40. 依據以下之定義,下列之用法何者正確?
enum sports {BASKETBALL, FOOTBALL, HOCKEY, BASEBALL, SOCCER};
(A)HOCKEY + FOOTBALL <>SOCCER
(B)BASEBALL + + = SOCCER
(C)SOCCER -- = BASEBALL
(D)FOOTBA LL <= SOCCER。
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統計: A(0), B(1), C(0), D(3), E(0) #3047404
統計: A(0), B(1), C(0), D(3), E(0) #3047404