—This winter in Kunming is really cold. —Really? Kunming the Spring City? One of the most

问题补充：

—This winter in Kunming is really cold.

—Really? Kunming, the Spring City? One of the most beautifulin China?

A. city

B. a city

C. cities

D. countries

答案：

A. city

B. a city

(答案→)C. cities

D. countries

解析：句意：昆明的这个冬季真的很冷。真的吗？春城昆明，中国最美丽的城市之一？one of…,……之一，后跟可数名词的复数形式，并常与形容词的最高级连用，加之昆明是城市，不是国家，用其复数形式，故选C。