- Do the Chinese like playing basketball?
- .
A:Yes, he does
B:No, they aren't
C:Yes, they do
D:No, they can't
下列各骨中,属于家兔前肢骨的是( )
如图,在△ABC中,∠BAC=90°,AD⊥BC于D,DC=4,BC=9,则AC为( )