問題詳情
42. The best __________ in USA is the person who can conduct the shortestpossible route travelling to visit several cities in his list exactly once andreturn to his city of origin.
(A)doctor
(B) educator
(C) master
(D) salesman
參考答案
答案：D
難度：困難0.333333
統計：A(0),B(3),C(8),D(8),E(0)