【单选题】6为了规范机械图样的格式和内容,便于技术管理和技术交流,国家制定了相应的标准。所以根据机械制图国家标准规定,下列叙述正确的是()
A.
一张完整的装配图应包括:一组图形,必要的尺寸,必要的技术要求,标题栏零件序号及明细栏。明细栏中竖向分隔线用了细实线
B.
不同位置的移出断面图有着不同的标注方法。其中不对称的移出断面图均必须标出字母和箭头
C.
机械图样中有着多种常用的图线。其中断裂处的边界线可用波浪线或双折线
D.
在我们生活中有很多零件都是标准件。其中螺栓,垫圈,普通平键,标准齿轮,均为标准件
【简答题】Insert as...as where necessary in the following sentences. 1. Maybe her illness was not bad the doctor had believed. 2. His brain was just full of knowledge theirs. 3. The population of Scotland was e...
【单选题】Rodayne’s friends say he is an excellent communicator. His listening ability has helped him develop and maintain a number of positive relationships, and he is extremely sensitive to the feelings and i...
【单选题】在装配图中应标注的尺寸中, 不包括的是( )?
【简答题】What is known for Iron Man? A.He is sensitive, progressive and cold. B.He is adaptable, hard-working and patient. C.He is wise, intelt and persistent. D.He is systematic, loyal and brave. 2.What ...
【单选题】He is sensitive ( ) private questions. ( 他对私人的问题很敏感。)
【单选题】Mr. Hassard cries so just because he is a Highly Sensitive ( 敏感的 ) Person (HSP). This kind of person is very sensitive to feelings — their own and those of others.