大学英语四级模拟试卷第11组(阅读3)
ited States Congress established the Communications Satellite Corporation——Comsat——to develop a commercial satellite system as part of an improved global communications network. Comsat, which is owned partly by public investors and partly by communications carriers, represents the United States in the International Telecommunications Satellite Consortium-Intelsat-and acts as manager for that body. Since its inception in 1962, the corporation, in collaboration with Intelsat, has inaugurated commercial satellite transmission of telephone, television, and other telecommunications traffic between North America and Europe and North America and the Far East.
The commercial satellite Intelsat IV was launched in June of 1972.This one-and-one-half-ton spacecraft multiplied by five times the space-borne relaying capacity linking Africa, Europe, Asia, and Australia. With the launching of Intelsat IV, full global coverage by communications satellites had at last been achieved.
31. The first paragraph indicates ____.
A) communications systems is becoming more and more independent
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