52. 五名工人按甲—乙—丙—丁—戊的顺序轮流值夜班,每人值班1天休息4天。某日乙值夜班,问再过789天该谁值班?
(A)甲
(B)乙
(C)丙
(D)戊

答案:登入後查看
統計: A(0), B(0), C(0), D(76), E(0) #1270834