— I don't think your team can beat theirs.

— ____. But we could if Lin Tao were on the team. [ ]

A. No, we can't

B. Yes, we can't

C. Yes, we can　

D. No, we can

《公共建筑节能设计标准》要求在保证相同的室内环境参数条件下，与未采取节能措施前相比，全年采暖、通风、空气调节和照明的总能耗应减少（）。

A．30％

B．50％

C．60％

D．65％