2. 外语
  3. In 1845 Sarah Mather invented a submarine telescope that could be used to locate and study underwater objects.

In 1845 Sarah Mather invented a submarine telescope that could be used to locate and study underwater objects.

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问题 In 1845 Sarah Mather invented a submarine telescope that could be used to locate and study underwater objects.
选项 A、illuminate
B、raise
C、find
D、examine
答案C
解析
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