题目内容
××工程建设单位在工程规划设计中，指派某平面控制测量小组进行小区域控制测量，已知该测量区域的建筑密度比较大。请写出常规平面控制测量的方法，并分别介绍各种测量方法有何优缺点结合该测量区域的情况，为该测量小组选定一种适宜的平面控制测量方法。
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