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(每题的备选项中，只有1个最符合题意) 某建筑工程建筑面积200000m2，混凝土现浇结构，筏板基础，地下3层，地上13层，基础埋深13m。基坑开挖后进行验槽，并对基地进行钎探。 土方边坡用边坡坡度和( )表示。
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请写一份有关“农村‘三农’发展”问题的文章。要求：1．参考给定资料，自选角度，提出问题、解决问题。2．观点明确，联系实际、分析具体、条理清楚、语言流畅。3．字数在1000～1200字之间。
(每题的备选项中，只有1个最符合题意) 某建筑工程建筑面积200000m2，混凝土现浇结构，筏板基础，地下3层，地上13层，基础埋深13m。基坑开挖后进行验槽，并对基地进行钎探。 拱和高度大于( )时的梁等结构，可单独浇筑混凝土。
The American expression" burning your bridges’ means acting in such a way which you de stroy any chance of turning back or changing your actions. It gets its name from war. An army that is forced back across a river may decide to burn the bridge 41 crossing it. In this way, the army 42 its enemy from using the bridge. 43 , the army also destroys its own chance to 44 back across the river. Most people who" burn their bridges today don’t 45 the army. But 46 those armies, they move in a different direction with 47 chance of turning back. There is one other 48 that all bridge burners should not forget. It is a warning. "Don’t cross your bridges 49 you come to them. "The meaning is clear: wait until the right time before you 50 .
Betty is a fourth-year student. She is good at jumping. The school sports meeting will be held on May 4th and she entered(报名登记)her name for the high jump and the long jump. But two days later she fell from a ladder and hurt her right foot. Her parents sent her to the nearest hospital. The first word she asked the doctor was, "Can I jump in seven days, doctor I don’t like to miss our school sports meeting. "Without a word, the doctor looked her over carefully and said, "Don’t worry. It’s not badly hurt, your foot will be much better by the end of April. On May 4th you are able to run and jump at sports. \ Which is not true
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