题目内容
写出空缺处单词、固定短语或固定搭配的正确形式。
They have invited a _________(science)to give them a speech on space.
答案:scientist
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题目内容
写出空缺处单词、固定短语或固定搭配的正确形式。
They have invited a _________(science)to give them a speech on space.