题目内容
The source of this interference remains unconfirmed, but increasingly, experts point the blame at __________ computers, radios and cassette players and mobile telephones.
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The town is not of any __________ ,but the mountainous area around is important.
The trouble with the global warming __________ is that it has become a moral problem when it's really an engineering one.
The tumour had __________ to the size of a pea.
The two countries always __________ close relations.
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