知识就是力量，我们读书越多知识就越丰fu。

A. that
B. which
C. like
D. as

A. ＜5％
B. 5％～7％
C. 8％～10％
D. ＞10％
E. ＞20％

A. words
B. remarks
C. accents
D. speeches