–What do you think of this ________?–I love it. I learned a lot about Steve Jobs after reading it.
A:orange
B:schoolbag
C:movie
D:book
在△ABC中,角A、B、C所对的边分别为a、b、c,且acosB-bcosA=12c,当tan(A﹣B)取最大值时,角C的值为____
在下列长度的各组线段中,能组成直角三角形的是( )
—They are all vacation now.