如图,在△ABC中,点D、E、F分别是三条边上的点,EF∥AC,DF∥AB,∠B=45°,∠C=60°.则∠EFD=( )
A:80°
B:75°
C:70°
D:65°
《曹刿论战》中所讲的“一鼓作气,再而衰,三而竭”,告诉我们应处事果断。( )
Each of us is looking forward _________ a good result. Let's do it more carefully.