Cindy is ______six-year-old girl and she has become famous since her _______first appearance in the show Where Are We Going, Dad?

A．a, the

B．a, /

C．the, the

D．the, /

在油料种子发育过程中，最先积累的贮藏物质是（）。

A．油脂

B．脂肪酸

C．蛋白质

D．淀粉