单项选择题
Pigment cells with dark,reddish brown contents occurring either singly in the ground tissue or in a axial rows accompanying the vascular bundles关于色素细胞,描述不正确的是()
A.色素细胞含深红棕色物 B.色素细胞含黑色物 C.色素细胞围绕维管束 D.色素细胞成轴行排列 E.色素细胞在基本组织中单一存在
A.natural kieselguhr B.calcined kieselguhr C.hydrochloric acid extracted Kieselguhr D.Kieselguhr G E.Calcium sulphate hemidydrate