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【单选题】
砌筑砖砌体时,砖应提前( ) d 浇水湿润。A.
0
B.
1 ～ 2
C.
2 ～ 3
D.
3～4
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【简答题】I. Explain the following terms 1. shipment contract 2. symbolic delivery 3. arrival contract 4. actual delivery II. Short questions 1. Who pays for loading for shipment under FOB? 2. Who pays for unlo...
【简答题】为什么矿渣水泥的早期强度低,而后期强度发展快?
【简答题】为什么矿渣水泥的早期强度低，而后期强度发展快？
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