A.Dao động tự do.
B.Dao động tắt dần.
C.Dao động cưỡng bức.
D.Dao động duy trì.

A.êlectron và ion âm.
B.êlectron và ion dương.
C.êlectron.
D.ion dương và ion âm.

A.visual
B.verbal
C.very few
D.uncommon

A.can help us control our feelings
B.are the most difficult to control
C.cannot express our feelings
D.do not include eye brow moments

A.Nonverbal language is only used by the deaf and the mute.
B.One cannot communicate in both verbal and nonverbal language.
C.Those who can listen and talk should not use nonverbal language.
D.People communicate with both verbal and nonverbal language.

A.Nonverbal language is only used by the deaf and the mute.
B.One cannot communicate in both verbal and nonverbal language.
C.Those who can listen and talk should not use nonverbal language.
D.People communicate with both verbal and nonverbal language.

A.words
B.spatial distance
C.facial expressions
D.tone of voice

A.nonverbal can never get any responses
B.most people do not like nonverbal communication
C.even silence has message value
D.touching is not accepted in communicating

A.have learnt how to communicate in nonverbal language through books
B.can communicate in nonverbal language only when they are mature
C.have learnt how to communicate in nonverbal language since a child
D.communicate in nonverbal language much less than they do in verbal language

A.looking at the words that are written
B.understanding
C.saying something aloud
D.expressing