777.When a motorcycle is riding in the slow lane on a road with separated fast andslow lanes, and there is no posted speed limit, what is the maximum speedallowed?
(A) No more than 30 km/h.
(B) No more than 40 km/h.
(C) No morethan 50 km/h.

考題觀念本題測驗的是道路交通安全規則中...