30. The city has one of the world’s largest subway systems. The subway system is so _____ that many first-time travelers
get lost in it.
(A) appropriate
(B) complicated
(C) essential
(D) enthusiastic
詳解 (共 3 筆)
未解鎖
這座城市擁有世界上最大的地鐵系統之一。...
未解鎖
The city has one of...
私人筆記 (共 1 筆)
未解鎖
正解：(B) complicated ...
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