最终覆盖层的表面应有（）坡度。
A.不用坡度
B.1％左右
C.2％～4％
D.6％～10％
参考答案：C
--- Did you enjoy yourself at the party? --- Sorry to say I didn't. It was _____ a meeting than a party.
A．more of
B．more or less
C．less of
D．rather like
