题目内容：
Every human being, 1 what he is doing, gives off body heat. The usual problem is 2 dispose of it. But the designers of the Johnstown campus of the University of Pittsburgh set themselves the 3 problem — how to collect body heat. They have designed a collection system which utilizes 4 body heat, but the heat given off by such objects 5 light bulbs and refrigerators as well. The system works so well 6 no conventional fuel is needed 7 the campus. six buildings comfortable.Some parts of most modern buildings—theatres and offices 8 classrooms—are more than amply heated by people and lights and sometimes must be air-conditioned 9 in winter. The technique of 10 heat and redistributing it is called "heat recover".
(1) A 、 though B 、 no matter C 、 however D 、 in spite of
(2) A 、 how to B 、 how C 、 what D 、 what to
(3) A 、 similar B 、 wrong C 、 opposing D 、 opposite
(4) A 、 both B 、 not only C 、 as well as D 、 neither
(5) A 、 for example B 、 like C 、 of D 、 as
(6) A 、 which B 、 then C 、 that D 、 therefore
(7) A 、 make B 、 to be made C 、 to makeD 、 making
(8) A 、 including B 、 as well as C 、 with D 、 as well
(9) A 、 even B 、 so C 、 ever D 、 much
(10) A 、 saving B 、 being saved C 、 disposing D 、 being disposed
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