问题
选择题
A series of ancient Chinese coins are ________ in an exhibition held in Nanjing, where a variety of ancient currencies were unveiled.
A．in place
B．on display
C．at length
D．on purpose
答案
答案：B
题目分析：句意：一系列中国古代硬币在南京举行的展览中展出，那里大量古代货币被揭开面纱。on display意为“展览，公开展出”，in place意为“适当，适当的；在适当的地方”，at length意为“最后，终于；详细地”， on purpose意为“有目的地，故意地”。