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【简答题】
Fill in the blanks in the following sentences with the correct form of the words from the boxes. swelling compact unalterable 1. As we came near the venue, we could hear the roar of the crowd for the rival teams. 2. This is a(n) law of nature: Old leaders have to be continuously replaced by new ones. 3. A(n) design saves your office space.
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【简答题】幅频特性的测试数据记录:下限截止频率 =( )Hz,上限截止频率 =( ) MHz。
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