A:Not the teacher but the student
B:Both the students and the teacher
C:Neither the teacher not the student
D:Not the students but the teacher
如图,在正方形ABCD中,E、F分别是边AD、CD上的点,AE=ED,DF=14DC,连接EF并延长交BC的延长线于点G.
(1)求证:△ABE∽△DEF;
(2)若正方形的边长为4,求BG的长.
— What do you think of AnimalWorld?
— ________ and my sister also likes watching it.