【单选题】
柱斜向布置中三点共弧是指( )三者共弧。
①
停机点、杯形基础中心点、柱脚中心
②
柱绑扎点、停机点、杯形基础中心点
③
柱绑扎点、柱脚中心、停机点
④
柱绑扎点、杯形基础中心点、柱脚中心
【单选题】
正投影法中，投影面、观察者、物体三者相对位置是( )
①
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7.8 磅
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EN-US
ZH-CN
X-NONE
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人——面——物
②
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物——人——面
③
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C. 人——物——面
④
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面——人——物