A:show off
B:bring out
C:turn out
D:take i
Her father was a quiet man with ____(grace) manners.
已知函数fx=cosx-m2+1在cosx=-1时取得最大值,在cosx=m时取得最小值,则实数m的取值范围是( )
____(精确地) speaking,you are making the same mistake.