题目选项分析

Although dozens of New York's small museums are either devoted to local history or various ethnic groups, there are many one-of-a-kind museums from Manhattan to the Bronx that are open for exploration on summer weekends.

Dozens of New York's small museums are devoted to local history or various ethnic groups, and there are also many one-of-a-kind museums from Manhattan to the Bronx that are open for exploration on summer weekends.