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【简答题】
Airplanes come in many different shapes and sizes depending on the mission of the ____1____, but all modern airplanes have certain components in common. These are the fuselage, wing, tail assembly and control surfaces, landing gear, and____2_______ . For any airplane to fly, it must be able to lift the ___3____of the airplane, its fuel, the passengers, and the cargo. The wings generate most of the __4___to hold the plane in the air. To generate lift, the airplane must be pushed through the air. The___5____, which are usually located beneath the wings, provide the thrust to push the airplane forward through the air. The fuselage is the body of the airplane that __6____all the pieces of the aircraft together and many of the other large components are attached to it. The fuselage is generally streamlined as much as possible to reduce __7____. Design for fuselages vary widely. The fuselage ___8_____the cockpit where the pilot and flight crew sit and it provides areas for passengers and cargo 。 It may also carry armaments of various sorts. Some aircraft carry __9____in the fuselage; others carry the fuel in the wings. In addition, an engine may be housed in the ___10_____.
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因地制宜
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步移景换
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