题目内容:
Whenthebuilderstartstobuildahouse,hisestimatewillhavetobecorrectedandre-visedbecause
A.itiswronglyworkedoutbyaworkman B.thefutureownerofthehousethinkstheestimateissohighthathecannotaffordthebuilding
C.thepricesofbuildingmaterialsandtheexpensesoflabormaybedifferentfromtheoriginalpricesandexpenses
D.estimatesareusuallymistakeninthebeginning
参考答案:
答案解析: