248.如果机翼上的所有扭力管未连接,则使用适配器单独的驱动每个襟翼。 ( )

689. In English， a verb and one or more prepositions sometimes go together to make a "phrasal verb" This phrasal verbthen has a meaning which is different from the meanings of its parts Phrasal verbs often have two meanings， the original，more concrete meaning， and a more abstract one， too

688.Examine the area that is around the drain holes for signs of corrosion( )

687.如果电缆扭曲,断开两个电插头。 ( )

686.Air supply system is used for pressurizing supply tanks to insure fluid flow ( )

685.Format and layout is to be determined by the CAP producer, recognizing that it is desirable that the format and layout be similar to the producers existing documents ( )

684.减震器是一个可伸缩油气装置。( )

683.确保组件底部的两个阀门接合 ( )

682.Those electrical units and components which generate, control and supply AC and/or DC electrical power for other systems, including generators and relays, inverters, batteries, etc, through the secondary busses ( )

681.Procedures shall be provided for start the engine in flight and , in the event the engine does not start , for subsequent action[s)

680.That portion of the system used to indicate operation or activation of propeller systems Includes items such as light, switches, etc( )