— Is this a knife?

 — _____[ ]

A. Yes, it's.

B. No, it's not.

C. Yes, it is.

D. No, it is.

下列既体现唯物辩证法联系的观点，又体现唯物辩证法发展观的是（）

A.画饼充饥

B.唇亡齿寒

C.一叶知秋

D.青出于蓝而胜于蓝