固化条件不当或干燥速度过快（）
A.薄膜衣起泡
B.片面不平
C.色泽不匀
D.叠片
E.粘锅
参考答案：A
Software configuration management (SCM) is the task of tracking and controlling changes in the software. Configuration management practices include configuration identification, change control, ( ) and configuration audit.
A. milestones marking
B. status reporting
C. stakeholder management
D. quality audit
当梯形螺纹为左旋时，需在尺寸规格之后加注（）。
A.L
B.R
C.LH
D.RH
