Because of the use of long-range precision weaponry, the opposite parties in warfare cant touch or see each other, and distance is no longer the decisive factor affecting the (59) of battles, it is hard to clearly define the lines between the frontier and the rear, as well as attack and defense. The traditional three-dimensional air-sea battlefield will be (60) by the multi-dimensional battlefield composed of air, sea, magnetic, electrical and information battlefields. No large-scale movements can be conducted (61)。
Because modern weaponry systems are closely related to chains of demand and communication and electronic technology, the parties (62) have to pay attention to the usufruct (使用权) and control of electromagnetic frequency spectrum. So electronic warfare becomes (63) important and the necessary guarantee of victory. Whatever (64) warfare goes to and whatever cloak (宽大外衣) it wears, it always violates peace and brings the world bloodshed (流血)。 Most people think of high technology as a (65) to enhance, e their lives, and they dont wish it to be used to destroy lives.
51 A.usesB.adopts C.selects D.determines
52 A.processed B.broughtC.studied D.shared
53 A.effectivenbsp; B.active C.protective D.descriptive
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