)
参考答案：错
——Are you going to take part in the speech contest?
——____________. It’s too good an opportunity to miss.
A．No problem.
B．That’s for sure.
C．No way.
D．It’s a deal.
一个圆的周长、直径、半径相加的和是18.56厘米，这个圆的半径是______厘米，面积是______平方厘米．
