—I want to win the first prize in the coming school English competition.
—________.
A:I bet you do
B:What's it about
C:Nice work
D:I'll see to that
边长分别是下列各组数的三角形中,能组成直角三角形的是( )
△ABC中, ∠A,∠B,∠C所对的边分别为a, b, c.若a=3,b=4,∠C=60°, 则边 c 的值等于( )
请回答下列问题: