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施工人员上、下脚手架必须走设置安全防护的出入通道，严禁攀援脚手架。( )
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A. coolB. gameC. auntD. southE. eastF. fatherG. baby the wife of one’s uncle
In an English village not far from London, Oliver and twenty other poor children lived in an orphan’s home. They had their meals in a large stone hall. The boys we re always hungry, because the master gave them only one small plate of soup. The master and his two assistants stood with solemn faces near the table and watched the frightened children. Sometimes Oliver felt so sad and frightened that he want ed to run away. However, the master never gave him a chance of escape. Later, 0liver did leave the home which he had hated. Oliver had his meals in a house made of wood.
先张法施工中，应在混凝土强度达到设计强度要求或混凝土设计强度标准值75%时进行。( )
钢筋冷拉有控制应力和控制冷拉率二种方法。若Ⅱ级钢冷拉控制应力为工级钢的1.6倍，那么，Ⅱ级钢控制冷拉率也是Ⅰ级钢的1.6倍。( )
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