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1、五年级上册综合实践活动Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.斜拉索桥吊桥铁索桥拱桥Evaluation only.Evaluation only. Created with As
2、pose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.木桥石桥竹桥盐桥冰桥铁桥Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created wi
3、th Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.卢沟桥Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 200
4、4-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.赵州桥Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.伊丽莎白大桥Eval
5、uation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.说一说： 亲爱的同学，给你留下深刻印 象的桥是哪种类型的桥，能简 单介绍一下它的情况吗？Evaluation only.Evaluation onl
6、y. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.考考你！ 你知道多少中国桥梁之最？孔数最多的桥：最大的交叉桥：最早的桥梁：最长的石梁桥：中国苏州的宝带桥，有53个桥孔。北京三元交叉桥。它共有3座立交桥，5条匝道引桥，6条匝道， 8座人行地道，9座人
7、行楼梯。陕西省西安市的灞桥。已有二千六百多年的历史了。最大最重的石梁桥： 福建省漳州的虎渡桥。其最大的一条花岗石梁长23.7米，宽1.7米 高1.9米，重约207吨。福建省晋江县的安平桥。桥长2070米，宽3-3.8米， 建有桥墩314座。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011
8、Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.世界上最大的斜拉桥：_世界上最大的悬索桥：_世界上最大的梁式桥：_世界上最大的拱式桥：_中国的苏通大桥广州的黄州大桥日本的名石海峡大桥湖南的凤凰乌巢河桥Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004
9、-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.中国苏州的宝带桥，有53个桥孔。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Lt
10、d.北京三元交叉桥。它共有3 座立交桥，5条匝道引桥，6 条匝道， 8座人行地道，9座人行楼梯 。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.陕西省西安市的灞桥。已有二千六百多年的 历
11、史了。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.福建省漳州的虎渡桥。 其最大的一条花岗石梁 长23.7米，宽1.7米 高1.9米，重约207吨。Evaluation only.Eva
12、luation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.福建省晋江县的安平桥。 桥长2070米，宽3-3.8米，建有桥墩314座。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.
