1. 

The primary interactive method of communication used by humans is:

A. reading
B. writing
C. speaking
D. All of the above
E. None of the above

2. 

Elementary linguistic units which are smaller than words are:

A. allophones
B. phonemes
C. syllables
D. All of the above
E. None of the above

3. 

In LISP, the atom that stands for "true" is

A. t
B. ml
C. y
D. time
E. None of the above

4. 

A mouse device may be:

A. electro-chemical
B. mechanical
C. optical
D. both b and c
E. None of the above

5. 

An expert system differs from a database program in that only an expert system:

A. contains declarative knowledge
B. contains procedural knowledge
C. features the retrieval of stored information
D. expects users to draw their own conclusions
E. None of the above