问题 问答题 简答题

什么是剖视图?

答案

参考答案:

假想机件沿剖切面剖开,将处在观察者和剖切平面之间的部分移去,而将留下部分向投影面投影所得的视图称为剖视图。

改错题
下列句子均有一处错误,先指出错处并把序号填在括号里,然后在后面的横线上改正。
1. There are usually three hundreds and sixty-five days a year.
               A                           B        C                          
2. Yao Ming is 3 years old than Liu Xiang.                      
                    A       B    C                                      
3. It took him two weeks finishing reading the book.            
          A    B                       C                                  
4. Please stop to talk. Let's start doing some reading.        
                      A                            B                C            
5. Could you please give me three another apples.                
        A                       B                    C                          
( ) __________    
                      
( ) __________    
                      
( ) __________    
                      
( ) __________  
                      
( ) __________    
问答题 简答题