1. 工程量清单项目编码的七、八、九位表示为（ ）顺序码。

vCould you ___ us ___some informtionboutll kinds of vctions provide, for B．provide, with C．give, with D．offer,tA．provide,forB．provide,withC．give,withD．offer, at

A、IF单分支结构
B、IF双分支结构
C、IF多分支结构
D、IF嵌套结构

t,Cn you provide us _________ some informtion _______ the computer for, with B．with,bout C．bout, with D．with, withA．for, withB．with, aboutC．about, withD．with, with