— I'd like to invite you to dinner this Saturday.

— ______. [ ]

A. Come on

B. I'd rather stay at home.

C. Oh, no. That will be too much trouble.

D. I'm very sorry, but I have other plans.

散水的构造做法，（（）是不正确的。

A、在素土夯实上做60~100mm厚混凝土，其上再做5%的水泥砂浆抹面。

B、散水宽度一般为600~1000mm。

C、散水与墙体之间应整体连接，防止开裂。

D、寒冷地区应在基层上设置300mm厚的炉渣、中砂或粗砂防冻层。