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  3. Some call it the Smart Shooter, a new rifle for American infantry troops that is two weapons in one, is accurate up to 1,000 yar

Some call it the Smart Shooter, a new rifle for American infantry troops that is two weapons in one, is accurate up to 1,000 yar

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问题    Some call it the Smart Shooter, a new rifle for American infantry troops that is two weapons in one, is accurate up to 1,000 yards and in【C1】______fires【C2】______corners. Its message to enemies is that they can run but they can’t hide. Still in the development phase, the rifle for 2006 has just been【C3】______off with great【C4】______by the Pentagon to members of Congress who will be a$ked to【C5】______the money. The makers, Alliant Techsystems, say that the weapon will revolutionize【C6】______combat much as the machine gun.
   Pentagon jargon has given the new gun a (an)【C7】______title: the Objective Individual Combat Weapon.【C8】______one trigger, the rifle can fire a standard 5.56 mm Nato bullet and a 20 mm high explosive shell that will burst in the air. It can【C9】______shrapnel behind,【C10】______or even from the side of enemy troops who have taken【C11】______behind a building. The shell can be【C12】______to explode after a short delay. The weapon’s 1,000 yard accuracy is twice【C13】______of other rifles, made possible by a laser system built into the sight. This rangefinder fixes the target, measures the distance and passes it along to a computer chip in the shell.
   The gunsight has an infrared lens for night【C14】______. It can also have video camera with a zoom lens that is linked to a video display attached to the soldier’s helmet, allowing him to aim【C15】______without exposing himself to enemy return fire. But there are snags still be【C16】______out. Two men were【C17】______when a shell burst in a barrel during firing tests. The rifle weighs more than 181b. There are questions whether its electronic innards will be rugged enough for rain, snow and difficult【C18】______. Michael Klare, a professor of peace and world security issues and a board member of the Arms Control Association, says that the Pentagon is seeking this combination of firepower and automation to compensate for the uncertain aim of GIS. He said: "Soldiers won’t have to worry about careful steady aim. They’ll just look【C19】______the viewfinder and【C20】______the trigger."
【C3】
选项 A、put
B、shown
C、checked
D、given
答案B
解析 [A]put off意为“推迟，阻止”。[B]show off意为“炫耀，卖弄”。[C]check off意为“查对；验证”。[D]give off意为“散发出”。根据题意“五角大楼极为自豪地向国会议员展示了它”，show off最合题意。故答案为[B]。
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