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- united states (84)
- history (56)
- political aspects (20)
- 研究 (14)
- government policy (12)
- national security (12)
- social aspects (12)
- congresses (11)
- law and legislation (10)
- economic aspects (9)
- history and criticism (9)
- social conditions (9)
- globalization (8)
- international cooperation (7)
- research (7)
- tables (7)
- mass spectrometry (6)
- psychological aspects (6)
- china (5)
- diplomatic relations (5)
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著者:
presented by the National Engineering Consortium
Inc.
cosponsored by the United States Telephone Association and the Information Industry Council of Metropolitan Chicago.
出版社:
National Communications Forum,
出版日期: c1990.
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