31.   A national ballistic-missile defense system, then, would be almost useless even if it worked.

32.   A missile defense system has long been a priority among Republicans since Reagan unveiled his strategic defense initiative.

33.   A more costly problem has arisen with the effort to build a strategic missile defense system.

34.   A recent unclassified CIA report said China could respond to a missile defense system by multiplying tenfold its number of long-range ballistic missiles.

35.   A science-fiction thriller about a planet that is mired in civil war and whose computerized defense system runs amok, threatening everyone.

36.   A second defense system, consisting of blood cells programmed to kill other cells infected by the virus, may be needed.

37.   Admittedly, deploying boost-phase defenses would require revising the Antiballistic Missile Treaty that bars the United States and Russia from building national missile defense systems.

38.   After strikes on the air defense systems, the allies would concentrate on striking tanks, armored personnel carriers and other heavy weapons.

39.   Albright told reporters the missile defense system is intended for future threats from North Korea and Iran.

40.   Again, the initial targets would be anti-air defense systems and the electronic and communications networks that support them.

n. + system >>共 804
computer 5.46%
school 2.85%
defense 2.63%
missile 2.33%
justice 2.00%
pressure 1.82%
tax 1.74%
security 1.68%
cable 1.60%
control 1.49%
defense + n. >>共 309
lawyer 15.07%
attorney 12.96%
minister 11.58%
official 5.04%
system 4.38%
ministry 3.12%
secretary 2.97%
team 2.75%
contractor 1.91%
industry 1.54%
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