【单选题】【消耗次数:1】
机械制图中一般不标注单位,默认单位是( )。
cm
m
mm
参考答案:
复制
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相关题目
【单选题】 机械制图中一般不标注单位,默认单位是( )
① 
② 
③  m
【单选题】 在机械制图中一般使用的投影法是_____。
①  垂直投影法
②  中心投影法
③  横向投影法
④  平行投影法
【单选题】 剖切位置在平面图上加以标注,标注方法按《机械制图》国家标准规定。( )
①  正确
②  错误
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①  正确
②  错误
【判断题】 我国早期的制图标准主要是机械制图标准
①  正确
②  错误
【判断题】 锥度的单位是mm/m。
①  正确
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【判断题】 控制图中一般有三条控制界限:上控制界限,中心线,下控制界限。
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【单选题】 图样中的尺寸一般以( )为单位时,不需标注其计量单位符号,若采用其他计量单位时必须标明
①  dm
②  cm
③  m
④  mm
【单选题】 建筑制图中线宽的基本单位是( )。
①  m
②  b
③  c
④  a
【判断题】 图样中的尺寸以cm为单位时,不必标注计量单位的符号。
①  正确
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【单选题】 5. Henry seemed_______by this completely unexpected turn of events.
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【单选题】 They grabbed her _____ arm and forced her into the car.
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【单选题】 7. As a teacher, he thinks his business is to stir up__________in his studentsrather than insist on obedience.
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【单选题】 2. You should deliberate over the question before you_______it.
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【单选题】 Anna was reading a piece of science fiction, completely _____ to the outside world.
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【单选题】 7. She is poor ______ she can hardly get anything to eat.
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