整体或板状材料保温层上作水泥砂浆找平层，其厚度应为20～25mm。 ( )
参考答案：对
一件风衣，按成本价提高50%后标价，后因季节关系按标价的8折出售，每件卖180元，这件风衣的成本价是（ ）元．
---I would never trust him again . He let me down.
----- _____________.
A,Neither would I B,So would I C,Nor was I D,So did I
