依据GB50205-2020《钢结构工程施工质量验收标准》，抗滑移试验时，紧固高强螺栓应分初拧、终拧。初拧应达到螺栓预拉力标准值的（）左右。

Ellen Degeneres is a（）show host.

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（）are the actors who play people in a crowd， often without a speaking part.

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Movies about ghosts and monsters and crazy killers are（）.

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CNN is a news channel.

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Which of the following is not a musical instrument？

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How you doin is from（）.

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Bazinga is from（）.

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Christmas Eve is the the evening before Christmas Day。

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People pull crackers after having Christmas dinner.

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BBC is a privately-owned channel.

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