阅读下面短文，从每题所给的四个选项A、B、C、D中，选出最佳选项。

　　Every human being, no matter what he is doing, gives off body beat. The usual problem is how to deal with it. But the designers of the Johnstown campus (校园) of the University of Pittsburgh set themselves the opposite problem how to collect body heat. They have designed a collection system which uses not only body heat, but the heat given off by such objects as light bulbs(灯泡 ) and refrigerators as well. The system works so well that no commonly used fuel is needed to make the campus's six buildings comfortable.

　　Some parts of most modern buildings theaters and offices as well as classrooms are more than amply (充分地) heated by people and lights sometimes must be air-conditioned even in winter. The technique of saving heat and redistributing (再分配 ) it is called “heat recovery (恢复)”. A few modern buildings recover heat, but the University's system is the first to recover heat from some buildings and reuse it in others.

　　Along the way, Pitt has learned a great deal about some of its heat producers. The harder a student studies, the more heat his body gives off. Male students send out more heat than female students, and the larger the student is the more heat he produces. It can be concluded that the hottest prospect for the Johnstown campus would be a hard-working, over-weight male genius.

1．Which of the following is true of the heating system of the Johnstown campus?

[　　]

A．The heat is supplied by human bodies.

B．The heat is supplied by both human bodies and other heat-giving objects.

C．The heat is supplied by both human bodies and commonly used.

D．The heat is supplied by human bodies, other heat-giving objects and commonly used fuel.

2．The technique of heat recovery is used to ______.

[　　]

A．find out the source of heat

B．produce a special form of air conditioning

C．provide the heat for the hot water system

D．collect and reuse heat

3．Which of the following persons would produce the least amount of heat?

[　　]

A．A fat female who studies hard.

B．A thin female who does not study hard.

C．A fat male who does not study hard.

D．A thin male who studies hard.

4．In the last sentence, the “hottest prospect” refers to _______.

[　　]

A．the person who produces most heat

B．the person who suffers most from heat

C．the person who takes in most heat

D．the person who stands most heat

5．A good title for this passage would be ______.

[　　]

A．Modern building's Heat System

B．A New Heat Recovery System in Pitt

C．A New Technique in Heating System

D．Recovery of Body's Heat