A.The removal of water in food helps prevent it from going rotten.
B.The open-air method of drying food has been known for hundreds of years.
C.In the course of dehydration, the temperature of hot current coming from entry to exit is gradually going up.
D.The process of drying liquids is much more complex than that of drying solid food.
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A.The relationship between man and his environment.
B.The relationship between living things and their environment.
C.The relationship between man and living things.
D.The relationship between man’’s brain and other living things.
A.It’’s a requirement for psychology majors.
B.She wasn’’t able to get into the traditional course.
C.She lives far from the university.
D.She has to work a lot of hours this semester.
A.He thought the copying process took too long.
B.He considered each photograph to be unique.
C.He didn’’t have the necessary equipment for reproduction.
D.He didn’’t want them to be displayed outside of his home.
A.Go to a fast food place with the man.
B.Eat after her class.
C.Join some friends for a quick meal.
D.Get to her class early.
A.It allows them to meet students from other universities.
B.It promotes the concept of self-learning.
C.It allows more flexibility in students’’ schedules.
D.It doesn’’t require any examinations.
A.Other living things change their environment while man doesn’’t.
B.Man alters his environment while he is adapted to it, but other living things do not.
C.Other living things is not only adapted to their environment but also alters it.
D.Man is only adapted to the environment but he doesn’’t alter it.
A.They were influenced by his background in engineering.
B.They were very expensive to take.
C.They were among the first taken under such condition.
D.Most of them were of poor quality.
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