【单选题】
定向钻铺管对使用的管材材质有严格要求，因此使用的___应符合国家有关现行标准及相关规定。
A. 施工质量
B. 技术水平
C. 管材质量
D. 技术要求
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答案
C
解析
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【单选题】
2___
A. Walking under a ladder.
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2___
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【单选题】
3___
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4___
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2___
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【单选题】
3___
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3___
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4___
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1___
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2___
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【单选题】
3___
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1___
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2___
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3___
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4___
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【单选题】
1___
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【单选题】
2___
A. To attract young customers.
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D. To keep people stay up for the night.
