精选优质文档-倾情为你奉上Cloze1In the 21st century, clouds and stormy weather no longer automatically bring operations to a halt or force a change in targets(目标). Technologies such as the Global Positioning System now allow cruise missiles(巡航导弹) and other smart weapons to home in on(瞄准并飞速接近) their targets. But the weather still is a factor that must be reckoned with, especially with precision-guided weapons that must be highly accurate (高度精确)to be effective.Fortunately, the ability to obtain weath