I will always remember how this friendly dolphin rescued me.
A:encouraged me
B:helped me
C:saved my life
增强中国文化的国际影响力必须吸收世界各国一切优秀文化成果。( )
如图,△ABC≌△DEF,△ABC的周长是40cm,AB=10cm,BC=16cm,求△DEF中,边DF的长度.