已知向量a=（cos2x，2sinx），b=（1，cosx），函数f（x）=a•

The previous project manager for your project managed it without much project organization．There is a lack of management control and no clearly defined project deliverables．Which of the following would be the BEST choice for getting your project better organized ？（）

A．Adopt a life cycle approach to the projec

B．Develop lessons learned for each phas

C．Develop specific work plans for each work packag

D．Develop a description of the product of the projec

纸页表面处理的目的？

城郊煤矿预案体系包括哪些？

个人信用报告也为查询者本人提供了审视和规范自己信用历史行为的途径，从而形成了个人信用信息的校验机制。( )

疏删