The employees were tired of working ______ hours and some of them even gave up their work.

A．special

B．extra

C．especial

D．spare

屋面卷材防水层上有重物覆盖或基层变形较大时，卷材铺贴应优先采用有铺贴方法有()。

A.空铺法 

B.点粘法 

C.条粘法 

D.冷粘法 

E.机械固定法