【OG24-753题】As a construction material, bamboo is as strong as steel and sturdier than concrete. Moreover, in tropical areas bamboo is a much less expensive construction material than either steel or concrete and is always readily available. ln tropical areas, therefore, building with bamboo makes better economic sense than building with steel or concrete, except where land values are high.Which of the following, if true, most helps to explain the exception noted above? _mofa留学圈mofaGRE在线题库系统_GRE在线搜题_GRE题库解析_GRE真题机经_GRE课程_GRE培训机构

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As a construction material, bamboo is as strong as steel and sturdier than concrete. Moreover, in tropical areas bamboo is a much less expensive construction material than either steel or concrete and is always readily available. ln tropical areas, therefore, building with bamboo makes better economic sense than building with steel or concrete, except where land values are high.

Which of the following, if true, most helps to explain the exception noted above?

Buildings constructed of bamboo are less likely to suffer earthquake damage than are steel and concrete buildings. Bamboo is unsuitable as a building material for multistory buildings. In order to protect it from being damaged by termites and beetles, bamboo must be soaked, at some expense, in a preservative. In some tropical areas, bamboo is used to make the scaffolding that is used during large construction projects. Bamboo growing in an area where land values are increasing is often cleared to make way for construction

正确答案： B

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题干翻译
竹子是一种比钢铁或混凝土便宜得多且随时可得的建筑材料。因此，在热带地区，除了地价高的地方，用竹子建筑比用钢铁或混凝土更具经济意义。 逻辑链
Bamboo cheaper→Better sense (except high land value) 问题类型
解释题，解释为什么在地价高的地方，用竹子建筑在经济上不如钢铁或混凝土。 推理过程
需要找到一个原因，说明在土地价值高的区域，竹子在经济方面存在劣势，即使它本身材料成本低且易获取。 选项分析
A选项：竹子建筑比钢铁和混凝土建筑更不易受地震破坏。这是竹子建筑的优势，无法解释在高地价地区的劣势，排除。 B选项：竹子不适合作为多层建筑的建筑材料。在土地价值高的地方，通常会倾向于建造多层建筑来充分利用土地，竹子不适合多层建筑，就导致在这些地方不具有经济优势，能解释，当选。 C选项：为了保护竹子免受白蚁和甲虫的损害，必须用防腐剂浸泡，这会产生一些费用。但不确定这个费用是否足以让竹子在高地价地区失去经济优势，解释力度不足，排除。 D选项：在一些热带地区，竹子被用于大型建筑项目中的脚手架。与竹子在高地价地区作为建筑主体材料的经济意义无关，排除。 E选项：在土地价值不断上升的地区，生长的竹子常常被清除以便为建筑腾出空间。这只是说竹子被清除，没有涉及到在高地价地区竹子作为建筑材料的经济劣势，排除。

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