A:4.8V,1.2V
B:6V,1.2V
C:1.2V,6V
D:1.2V,4.8V
下列行为属于学习行为的是( )
如图,AD=CE=24,BC=25,∠BCE=∠CAD,BE∥AD,BF:AF=7:24,给出下列结论:①∠E=90°;②∠BCA=90°;③∠BAC=45°;④AB=253.其中正确的结论有____ (把所有正确结论序号都填在横线上)
-She isn't_______ today. Do you know why?
-She lost her new bike.