问题描述：
请问：librarians are testing the waters .
请问：librarians are testing the waters to identify what present and future roles they may have in these developments; but these are early days,and it is still unclear what those roles may be.11
请问：librarians are testing the waters to identify what present and future roles they may have in these developments; but these are early days,and it is still unclear what those roles may be.11
问题解答：
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