_______for us to discuss the problem again.It has already been settled.[      ]

A. It has no doubt  

B. There has no doubt

C. It is no need  

D. There is noneed

创新意识和创新精神是一种（）的心理状态和思想意识。它们是创新活动的前提。

A.敢为人先

B.不断进取

C.求新求异