According to the passage, how many major networksare there?
A、Two.
B、Three.
C、Four.
D、Five.
Task 116.Paragraph①17.Paragraph②18.Paragraph③19.Paragraph④20.Paragraph⑤A. Popularity of Science FictionB. Future DevelopmentC. Classics of Science FictionD. Difficulty in Keeping Ahead of Scientific AdvancesE. Its Origin/PastF. Themes of Modern Science Fiction
Whichof thefollowingstatementsabouttherelationshipbetweentelevisionanditsviewerscanbest be inferred from the passage?
A、Viewers do not take an active role in watching television.
B、Viewers would prefer increased news coverage.
C、Viewers like to use television to reach other human beings.