All of the following would occur during the closure of the project EXCEPT （）.

A．creating lessons learned

B．formal acceptance

C．reducing resource spending

D．performing benefit cost analysis

随着科学技术的不断发展，采暖方式也变的多种多样，以下属于新型采暖方式的有：（）

A.地板采暖

B.电热膜采暖

C.蓄能电采暖

D.单户燃气采暖