According to Alans cover story，what is the different trait between a boss and most people？（）

A.putting some inexpensive sensors in stoves.
B.focusing on how stoves are actually used.
C.cooperating with mobile-phone companies.
D.possessing laboratory data about how stoves work.

A.great actions should be taken.
B.president’s action on business is a show.
C.doing is more than saying.
D.Larry Summers should be fired.