球形拱顶的截面呈单圆弧拱，拱顶的顶板由中心板、（）和加强环组成。
A、圆弧板
B、锥形板
C、圆形板
D、扇形板
参考答案：D
Would you feel ______ if you rushed to the cinema only to find the tickets had been sold out?
A．tired
B．annoyed
C．satisfied
D．excited
下列属于扶正治则指导下确立的治法( )
A．滋阴
B．益气
C．养血
D．扶阳
