She was a____ (显然) a very nervous woman, and that affected her career.
我国各地人口增长速度并不均衡,自1990年以来,人口增长较快的是( )。
已知(a﹣x)5=a0+a1x+a2x2+••+a5x5,若a2=80,则a0+a1+a2+••+a5=( )