3091. Make sure that you can hear the flight deck conversation in the headphone( )

1209. 固定卡子必须迅速移动到位。 ( )

1208. 如果混合后超过两小时,不要使用。( )

1207. 在操作地面测试设备之前,确保压力调节器设置为零。( )

1206. 典型的交流系统包括交流发电机、发电机调节系统、交流电源分配汇流条以及相关的保险和线路。 ( )

1205. Head aircraft into the wind ( )

1204. The zonal dryer system lowers the humidity in the crown area of the passenger cabin to decrease condensation on the inner surface of the fuselage skin( )

1203. The pressure decreases while the tires become cool ( )

1202. During the approach to the runway, deviation pointers in the course indicators show the pilot in which direction the aircraft must go( )

1201. 断开所有测试不需要的系统。 ( )

1200. 在批准例子中的词并不是强制性的。( )