[单项选择]Passage 2 Questions 6 to 10 are based on the following passage: Nonverbal (非语言的) communication has to do with gestures, movements and closeness of two people when they are talking. (78) The scientists say that those gestures, movements and so on have meaning which words do not carry. For example, the body distance between two speakers can be important. North Americans often complain that South Americans are unfriendly because they tend to stand close to the North American when speaking, while the South American often considers the North American to be “cold” or “distant” because he keeps a greater distance between himself and the person he is speaking to . The “eye contact” provides another example of what we are calling nonverbal communication. Scientists have observed that there is more eye contact between people who like each other than there is between people who don’t like each other. (79)The length of time that the person whom you are speaking to looks at your eyes indica
A. is a sign of one’s friendliness
B. is a sign of one’s unfriendliness
C. makes people fell happy
D. makes people feel uncomfortable