In a way, Pompeii is like a time capsule a frozen moment in history.
A. protecting
B. preserving
C. preventing
D. protesting
网友回答
A. protecting
(答案→)B. preserving
C. preventing
D. protesting
解析：动词辨析。A保护；B保存，保持；C预防，阻止；D抗议；句意：在某种意义上，庞贝古城就像是一个时间胶囊，保存在一段冰封的历史。故B正确。