【单选题】According to the working principle and functions, the flight instruments can be divided into , attitude instruments and .
A.
Navigation instruments, communication systems
B.
Navigation instruments, heading instruments
C.
pitot-static instruments, heading instruments
D.
pitot-static instruments, communication systems
【单选题】2016年以来,从杭州G20峰会到乌镇世界互联网大会,从北京“一带—路”国际合作高峰论坛到2017年9月在厦门举行的金砖国家领导人第九次会晤,我国主场外交活动在世界舞台大放异彩,极大地增强了国际话语权。这说明我国( ) 1坚持对外开放的基本国策 2积极与世界各国开展经济合作 3国际地位有了很大的提高 4已成为世界政治经济的主导
【单选题】正常情况下维持血容量及调节血管内外水分交换的主要因素是
【单选题】Mobile phones are proved to ______ with flight instruments and have a negative effect on flight safety.
【单选题】Which description about the flight instruments is wrong?
A.
VSI is the vertical speed indicator, which is used for getting the rate of climb of descend rate.
B.
HSI is horizontal situation indicator, which is used for getting the position of aircraft.
C.
ASI is air speed indicator, which is used for getting both of the indicated airspeed and Mach speed
D.
ALT is the altimeter which is used for getting the altitudes except for true altitude.
【单选题】Mobile phones have proved to ______ with flight instruments and have a negative effect on flight safety.
【单选题】2016 年以来 , 从 G20 杭州峰会到乌镇世界互联网大会 , 从北京 “ 一带一路 ” 国际合作高峰论坛到 2017 年 9 月在厦门举行的金砖国家领导人第九次会晤 , 我国主场外交活动在世界舞台大放异彩 , 极大地增强了国际话语权。这说明我国 ( ) 1 坚持对外开放的基本国策 2 积极与世界各国开展经济合作 3 国际地位有了很大的提高 4 已成为世界政治经济的主导
【单选题】Aviation instruments can be divided as flight instruments, and auxiliary instrument.
B.
navigation instruments