【单选题】

Children loam almost nothing from television, and the more they watch, the less they remember. They regard television purely (71) entertainment, resent programs that put (72) on them and are surprised that anybody should (73) the medium seriously. Far from being over-excited by programs, they are mildly (74) with the whole thing. These are the main conclusions from a new study of children and television. The author,CardiacCullingford, (75) that the modem child is a (76) viewer. The study suggests that there is little (77) in the later hours.All 11-year-olds have watched programs after midnight.

Apart from the obvious waste of time (78) , it seems that all this viewing has little effect.Cullingford says that children can recall few details. They can remember exactly which programs they have seen but they can (79) explain the elements of a particular plot. Recall was in " (80) proportion to the amount they had watcheD、"It is precisely because television, (81) a teacher, demands so little attention and response (82) children like it, arguesCullingforD、Programs seeking to (83) serious messages are strongly dislikeD、 (84) people who frequently talk on screen. What children like most are the advertisements. They see them as short programs (85) their own right and particularly enjoy humorous presentation.But again, they (86) strongly against high-pressure advertisements that attempt openly to (87) them.
In addition, children are not (88) involved in the programs. If they admire the stars, it is because the actors lead glamorous lives and earn a lot of money, (89) their fictional skills with fast cars and shooting villains, children are perfectly (90) the functions of advertisements.And saysCullingford, educational television is probably least successful of an in imparting attitudes or information.
A．partly because
B．mainly because
C．not because
D．not because of