[判断题]只要熟悉指吊手语，任何人都可以指挥天车。（ ）
A.正确
B.错误

All of us communicate with one another nonverbally (不使用言语地), as well as with words. Most of the time, we are not aware that we are doing it. We gesture with eyebrows or a hand,, meet someone else’s eyes and look away, change positions in a chair. These actions we assume are occasional. However in recent years researchers have discovered that there is a system to them almost as consistent and understandable as language.
One important kind of body language is eye behavior. Americans are careful about how and when they meet one another’s eyes. In our normal conversation, each eye contact lasts only about a second before one or both of us look away. When two Americans look searchingly into each other’s eyes, they become more intimate. Therefore, we carefully avoid this, except in suitable situations.
Researchers who are engaged in the study of communication through body movement are not prepared to spell out a precise vocabulary of gestures.
A. researchers explain the meaning of a gesture according to the situation in which it is used
B. researchers believe that one gesture has only one meaning
C. researchers think that one gesture can not be used in different situations
D. researchers look for patterns in textbooks to explain the meaning of a gesture