[单项选择]Perhaps the most startling theory to come out of kinetics, the study of body movement, was suggested by Professor Ray Birdwhistell. He believes that physical (1) is often culturally programmed. (2) , we learn our looks—we are (3) them. A baby has generally (4) facial features. A baby, according to Birdwhistell, learns where to set the eyebrows by looking at (5) around--family and friends. This helps explain (6) the people of some regions of the United States look so much (7) . New Englanders or Southerners have certain similar facial (8) that cannot be explained by (9) . The (10) shape of the mouth is not set at birth, it is learned after. (11) , the final mouth shape is not formed until well after permanent teeth are (12) . For many, this can be (13) adolescence. A husband and wife together for a long time often come to look somewhat alike. We (14) our looks
A. concrete
B. special
C. exact
D. absolute