阿摩線上測驗
42. What is one criterion that needs to be met before there are self-driving cars everywhere?
(A) All the cars need to have willing passengers.
(B) All the cars must be in tip-top condition.
(C) All the cars must be registered.
(D) All the cars need to be in tune with each other.
答案：登入後查看
統計： A(0), B(0), C(1), D(1), E(0) #3360017
統計： A(0), B(0), C(1), D(1), E(0) #3360017
