According to the passage， which of the following is not fight？

According to the passage， which of the following is not fight？ 查看材料

A.Nanotechnology will be used to change the structures of materials.

B.Nanotechnology will make an operation more precisely.

C.Nanotechnology will change the properties of materials.

D.Nanotechnology will cure diseases that can"t be solved at present.

请帮忙给出正确答案和分析，谢谢！