孔、轴之间的配合方式有哪几种?
参考答案:
常用的有:
①间隙配合:孔的尺寸大于轴的尺寸;
②过盈配合:孔的尺寸小于轴的尺寸;
③过渡配合:介与前二者之间的配合。
贝贝在小区看到一辆牌照为“皖A6532l”的小汽车,推断该车上牌的地区可能( )
A.山东省
B.安徽省
C.广东省
D.浙江省
— Did you hear about the air crash? I feel so lucky!
— Yes, If you _____ that flight, I _____ speaking to you now. [ ]
A. were taking; wouldn't be
B. took; wouldn't have been
C. had taken; wouldn't be
D. had taken; wouldn't have been