－What do you think of store shopping in the future?

－Personally, I think it will exist along with home shopping but ______.

A．will never replace

B．would never replace

C．will never be replaced

D．would never be replaced

在进度计划实施中，若某工作的进度偏差小于或等于该工作的（），此偏差将不会影响总工期。

A、自由时差

B、紧前工作最迟完成时间

C、总时差

D、紧后工作最早开始时间