明龙骨吊顶工程的饰面材料与龙骨的搭接宽度应大于龙骨受力面宽度的( )。
A．2/3 B．1/2 C．1/3 D．1/4
参考答案：A
Hurry up! The play __________ for ten minutes.[ ]
A. has begun
B. had begun
C. has been on
D. began
鼻咽
