The reviewer's appraisal of "Principles of Sensory Evaluation of Food" is one of ______.

A．introduce, in an interesting manner, the discussion of food
B．show the connection between food and nationality of food
C．indicate that there are various ways to prepare food
D．impress upon the reader the food value of fish

A．deaf people are generally introversive
B．the auditory sense is an important factor in food evaluation
C．they are more fastidious in their choice of foods
D．all types of subjects should be used