砖砌窨井定额包括（）。
A.挖土
B.砼垫层
C.内外壁粉刷
D.井圈盖制作
E.开圈盖安装
参考答案：B, D, E
Questions 11 to 18 are based on the conversation you have just heard.
A．He will tell Mary how to operate the dishwasher.
B．He will wash the dishes himself instead.
C．He will help Bill to translate the manual.
D．He himself will operate the dishwasher.
