問題詳情
13. An/A __________ is the set of systems within a place or organization that affectshow well it operates (for example, a public transport system or road system).
(A) arable land
(B) amenity
(C) outskirt
(D) infrastructure
(E) urban sprawl
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增