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如图，家的住宅楼AB与北京奥运会主体育场鸟巢隔且能看到鸟巢的最高处CD，两建筑物的底部在同一水平面上，视野开阔，但不能直接到达，为了测量鸟巢的最大高度CD，只能利用所在住宅楼的地理位置．现在仅有的测量工具是皮尺和测（皮尺可测量长度，测可测量仰角、俯角），请你帮助设计一个测量鸟巢的最大高度的方案． （1）要求写出测量步骤和必需的测量数据（用字母表示）并画出测量图形（测高度忽略不计）； （2）利用测量的数据（用字母表示），写出计算鸟巢最大高度CD的表达式．
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【单选题】In its latest research effort, the X-Cel Corporation requires subjects to “place themselves in place of another person” and explain the reasons for their purchase behavior. The firm is employing a for...
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【单选题】In its latest research effort, the X-Cel Corporation requires subjects to “place themselves in place of another person” and explain the reasons for their purchase behavior. The firm is employing a for...
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B.
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C.
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D.
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E.
projective technique.
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【简答题】Thank you for your purchase of our Buick (别克) car at Shanghai GM (上海通用汽车公司).We try our best to provide you with world-class service. To better ensure your rights, please complete and return the Owner ...
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【单选题】In its latest research effort, the X-Cel Corporation requires subjects to “place themselves in place of another person” and explain the reasons for their purchase behavior. The firm is employing a for...
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