读一读短文，完成下列的题目。

I live in the countryside (住在农村). I have some dogs and chicks. I often count (数) them. Now I see,

there are four heads and ten legs. How many dogs and chicks, do you know?

1. We have ______________ dog.

2. We have ______________ chicks.

关于塑料防水板防水做法要求，下列何者是错误的？（）

A.塑料防水板防水适用于受侵蚀性介质作用或受振动作用的地下工程主体迎水面或背水面的防水做法

B.塑料防水板幅宽宜为2-----4m；厚度宜为1-----2mm

C.铺设防水板前应先铺缓冲层，缓冲层应用暗钉圈固定在基层上

D.铺设防水板时两幅防水板的搭接宽度应为100mm