糖无氧酵解是在细胞的（）进行

A.线粒体

B.胞液中

C.内质网膜上

D.基质中

E.高尔基体

During the Renaissance, graphs and diagrams ______.

A．were often used to aid scientific researches

B．served as sources of fresh ideas for some scientists

C．could provide scientists with an immense quantity of knowledge

D．were necessary for the expression of creative ideas