下列关于细胞膜成分和功能的叙述,正确的是( ) A.脂质含量达50%,对细胞膜的功能起决定性作用 B.糖类的多少决定着细胞膜功能的复杂程度 C.蛋白质种类和数量多的细胞膜功能较复杂 D.脂质丰富的细胞膜功能复杂 答案:C( )15. ―Many people think women are better at cooking than men.―_________ . Most top chefs (厨师)in the world are men.A. I agree B. Exactly C. That's not the case D. Not at all