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判斷題

特種砂漿五層做法總厚度不宜超過10~20mm

答案：錯誤

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特種砂漿養(yǎng)護溫度可低于+5℃，養(yǎng)護時間可少于7D．

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加防水劑的砂漿拌合前先將防水劑與水拌合

答案：正確

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