“没有民主就没有社会主义”这句话的意思是（）。

A. range
B. lack
C. lot
D. number

A. against
B. about
C. to
D. or

A. our brains shrink as we grow older
B. the front section of the brain does not shrink
C. sixty-year-olds have the better brains than thirty-year-olds
D. some people’s brains have contracted more than other people’s

A. invites
B. affects
C. needs
D. reflects