The traditional color-dying technology does not use chemical pigments, and only use plant pigments and mineral pigments.

What is Mr. Mitchell particularly interested in（） A: Oil products. B: Dyestuffs and pigments. C: Cotton and linen materials.

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

Which of the following pigments is not a synthetic pigment? ( ) A: Indigo B: Sunset yellow C: Beet red D: Amaranth

Through spectral analysis of Yangshao culture pigments, the most prominent element in the red pigment was _____. A: tin B: silicon C: copper D: iron

The common classification of Staphylococci according to ( ) A: whether produce SPA or not B: different biochemical event and pigments C: K antigen of cell surface D: lactose fermenters

According to the instructor, what characteristic should a pigment have A: Ability to be applied at any temperature B: Ability to dry quickly after application C: No loss of strength when dissolved D: No harmful reaction with other pigments

39. Western paintings mainly use various kinds of colors. And its painting tools include the following choices except _____. A: A. brushes of different sizes B: B. ink stone C: C. pigments D: D. charcoal [ˈtʃɑːkəʊl] pencil