举一反三
- Which of the following descriptions is wrong about the control of an air conditioner?_____ A: The control position can be divided into remote control and local control. B: In local control, the automatic control system also needs to work. C: If the remote control doesn't work, the air conditioner won't work. D: In case of control system failure, manual control mode can be adopted.
- 词汇与结构 The aircraft take advantage of aerodynamic _________ to travel through the air by means of primary and secondary flight control surfaces which are operated by flight controls in the cockpit.
- 确保雷达和战术空中导航系统(TACAN)之间没有干扰。 A: Make sure that there is no interference between the radar and the tactical air navigation system (TACAN). B: Ensure that the radar does not interfere with the Tactical Air Navigation System (TACAN).
- You must take good care of the drainage cock of the air control systemBecause （） leads scale formed which might malfunction the pilot control valve and other instruments.
- ____________ the area from which planes take off at an airport.
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Has it been announced _____? A: when are the planes to take off B: that are the planes to take off C: where are the planes to take off D: when the planes are to take off
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satelliteautomatevaporin the air expansionhazardincorporate take control of lucrativemagneticget/be stuck inmountsignal bunchvibrateapproximatelycalculateapartcorrelate frequency From the control tower, air traffic controllers coordinate aircraft movement both ____ and on the ground.
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SSR is a radar device installed in air traffic control facilities to allow precise _______of aircraft. A: acquisition B: identification C: coordination D: interrogation
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词汇与结构 When aircraft are under radar control, air traffic controllers may replace some or all of these phases of the approach with radar____.
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Capitalism is an economic system based on private ownership of the means of production and their operation for profit.