题目内容
Fill in the blanks with the given words in their proper forms (用所给单词的适当形式填空,每空格限填一词)
The scientists thought the rocks brought from the moon were worth ______ (study).
答案:studying
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题目内容
Fill in the blanks with the given words in their proper forms (用所给单词的适当形式填空,每空格限填一词)
The scientists thought the rocks brought from the moon were worth ______ (study).