His ambition is ______ an actor. [ ]
A. becoming
B. become
C. to become
D. became
C
国家电网公司重大建设项目档案管理应遵循的基本原则为:
(1)统一管理;
(2)谁主管、谁负责;
(3)属地化保管;
(4)高效利用请你指出上面叙述的错误之处。
控制粗纱张力的措施有?