常用的食品添加剂有哪些？ 高中化学论文 谁来帮帮忙谢谢

In these a half year physical test studies in the process which and inquired into, I carried on the following eight groups to test: The Hall effect, the photoelectric effect and the Planck constant's determination, the supersonic sonic speed's determination, the hologram, the Newton's rings, the optical activity effect, the diffraction grating, the Mike ear abdicates the interference instrumental measurement wave length. My feelings a great deal, especially in this discussed that makes a successful experiment's key and my some experiences.