根据图样或实物的尺寸,准确地在工件表面上划出______的操作叫划线。
参考答案:加工界线
连词成句。
1. beautiful how (!)
2. brother is he my (.)
3. girl is that who (?)
4. meet to nice you (.)
5. is this family my (.)
6. talk let's (.)
7. my father I love (.)
8. TV let's watch (.)
9. she is sister your (.)
10. funny how (!)
正常情况下,食管镜检查成年男性,送入镜管23cm(距上切齿距离)可见主动脉弓压迫食管所致的搏动,其方位应是:()
A.食管的前壁
B.食管的后壁
C.食管的左侧壁
D.食管的右侧壁
E.以上均不是