某工厂第二季度的产值比第一季度的产值增长了x%,第三季度的产值又比第二季度的产值增长了x%,则第三季度的产值比第一季度的产值增长了( )
A:2x%
B:1+2x%
C:(1+x%)x%
D:(2+x%)x%
The dictionary is ______: many words have been added to the language since it was published.