Through spectral analysis of Yangshao culture pigments, the most prominent element in the red pigment was _____.
A: tin
B: silicon
C: copper
D: iron
A: tin
B: silicon
C: copper
D: iron
举一反三
- Which of the following pigments is not a synthetic pigment? ( ) A: Indigo B: Sunset yellow C: Beet red D: Amaranth
- 中国大学MOOC: 1.Many Chinese prefer “Iron rice bowl”jobs, and for them, the most most element is ________.
- The most abundant element amongst the following as found in plants is A: Carbon B: Nitrogen C: Iron D: Manganese
- Which of the followings is not a polyphenolic pigment ( ). A: Anthocyanins B: Flavonoid pigments C: Catechin D: Lutein
- Which of the following pigments is a not endogenous pigment? A: hemosiderin B: lipofuscin C: bilirubin D: carotene