From the first paragraph we know that ______. [br] From the passage we can infer

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问题 From the first paragraph we know that ______. [br] From the passage we can infer that ______.

选项 A、TV has begun to be used for educational purposes
B、there is no charge for CATV
C、cable TV cannot be used in mountainous areas
D、antennas for cable TV are usually put up in the center of a community

答案 A

解析
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