已知基本尺寸为 φ50mm 的轴，其下极限尺寸为 φ49.98mm，公差为 0.01mm，则它的上极限偏差是_____ mm，下极限偏差是 _______ mm。
查看答案
φ50mm的基孔制孔、轴间隙配合，已知其最小间隙为0,05mm，则轴的上偏差是 ________mm 。
We'd better write an application letter because _______
A. help you highlight your skills
B. help you highlight achievements
C. get the hiring manager’s attention
D. all the above
The font size should be between___________
A. 10 and 12 points
B. 11 and 12 points
C. 10 and 13points
D. 9 and 12 points
Before writing your job application letter,you should__________
A. do some work
B. do some ground work
C. think about it
D. talk with your friends
微信支付 
支付宝支付