首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Flight simulator (飞行模拟器) refers to any electronic or mechanical system for training airplane and spacecraft pilots and crew memb
Flight simulator (飞行模拟器) refers to any electronic or mechanical system for training airplane and spacecraft pilots and crew memb
admin
2013-09-28
26
问题
Flight simulator (飞行模拟器) refers to any electronic or mechanical system for training airplane and spacecraft pilots and crew member by simulating flight conditions. The purpose of simulation is not to completely substitute【C1】______ actual flight training but to thoroughly familiarize students with the Vehicle【C2】______ before they【C3】______ extensive and possibly dangerous actual flight training. Simulations also is useful for review and for familiarizing pilots with new【C4】______ to existing craft.
Two early flight simulators appeared in England within a decade after the first flight of Orville and Wilbur Wright. They were designed to enable pilots to simulate simple aircraft【C5】______ in three dimensions: nose up or down; left wing high and right low, or vice versa; and【C6】______ to left or right. It took until 1929, however, for a truly effective simulator, the Link Trainer, to appear, devised by Edwin A. Link, a self-educated aviator and inventor from Binghamton, New York.【C7】______ , airplane instrumentation had been developed sufficiently to permit "blind" flying on instruments alone, but training pilots to do so involved【C8】______ risk. Link built a model of an airplane cockpit equipped【C9】______ instrument panel and controls that could realistically simulate all the movements of an airplane. Pilots could use the device for instrument training, manipulating the controls【C10】______ instrument readings so as to maintain straight and level flight or【C11】______ climb or descent with no visual reference【C12】______ any horizon except for the artificial one on the instrument panel. The trainer was modified 【C13】 ______ aircraft technology advanced. Commercial airlines began to use the lank Trainer for pilot training, and the US government began purchasing them in 1934,【C14】______ thousands more as World War II approached. Technological advances during the war, particularly in electronics, helped to make the flight Simulator increasingly【C15】______ . The use of efficient analog computers in the early 1950s led to further improvements. Airplane cockpits, controls, and instrument displays had by then become so individualized that it was no longer feasible to use a generalized trainer to prepare pilots to fly anything【C16】______ the simplest light planes. By the 1950s, the US Air Force was using simulators that precisely【C17】______ the cockpits of its planes. During the early 1960s【C18】______ digital and hybrid computers were adopted, and their speed and flexibility revolutionized simulation systems. Further advances in computer and【C19】______ technology, notably the development of virtual-reality simulation, have made it possible to【C20】______ highly complex real-life conditions.
【C10】
选项
A、on the part of
B、on the basis of
C、on the track of
D、on the verge of
答案
B
解析
本题考查词组辨析。A(由……作出)B(根据)C(在……轨道上)D(在……边缘)。根据上下文,根据仪表的读数来操作。B符合句意。
转载请注明原文地址:https://kaotiyun.com/show/4xLK777K
0
专业英语四级
相关试题推荐
WhichofthefollowingisNOTtrue,accordingtothepassageyouhavejustheard?
WriteonANSWERSHEETTWOanoteofabout50~60wordsbasedonthefollowingsituation:Youhavewonthisyear’sscholarship,
Ifweviewascienceasabodyofsystematizedknowledge,thenchemistryisusuallycalledanaturalsciencebecauseit【C1】____
Ifweviewascienceasabodyofsystematizedknowledge,thenchemistryisusuallycalledanaturalsciencebecauseit【C1】____
Which"which"inthefollowingsentencesCANNOTbereplacedby"as"?
Inthesentence"ItiseveryMondayafternoonthatProfessorAndersongiveslecturesoninternationalfinance",theitalicized
Whathappenedtothe22-year-oldRossTruettAshley?
Manypeoplefavor______morenuclearpowerplants.
WhatistheplanoftheSmithsonianInstitution?
随机试题
A.虚热B.虚寒C.两者均有D.两者均无(2000年第115,116题)肺痿的主要病理为()
男性患者,39岁,近半年向心性肥胖,皮肤明显变黑,血皮质醇(8AM)66pmoL/dl(正常值5~25pmol/d1),血ACTH146μU/ml(正常值0~46μ/ml),pH7.46,血钾2.8mmol/L,CT示双侧肾上腺增生,最可能诊断为
初步诊断是本病的主要致病菌不包括
在招标方法和手段中,()与纸质招标相比,将极大提高招标投标效率,符合节能减排要求,降低招标投标费用,有效贯彻“三公”原则,有利于突破传统的招标组织实施和管理模式。
构建证券组合应遵循的基本原则之一是投资者在构建证券组合时应当考虑所选证券是否易于迅速买卖,该原则是()
某企业拟购买一套新设备以扩大生产能力,现有甲、乙两个方案可供选择。(1)甲方案:原始总投资为1000万元,项目计算期为5年,经营期每年所得税后净现金流量500万元。(2)乙方案:原始总投资为1200万元,项目计算期为10年,经营期每
五班四运转的轮休制的循环期为()。
教师威信的维护与发展中,教师要以“艺”强威,下列对“艺”的理解,正确的是()。(2016.广西)
左边给定的是纸盒的外表面,右面哪一项能由它折叠而成?
Accordingtothepassage,thecurrentemergencyinMexicoCityrefersto______.WhichofthefollowingstatementsisNOTTRUEa
最新回复
(
0
)