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

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。 ( )

247.Adequate terrain clearance is necessary for ILS approach( )

246.确保指示器显示的数值正确。 ( )

245.The cover title and applicable airplane designation shall be prominently displayed on the cover or spine of the Handbook Other information may be displayed on the cover( )

244.First try to install the adaptor with the shortest threaded area( )

243.The dust cap on the air charging valve is removed, the external air source is connected to the valve stem and the swivel nut turned to open the air charging valve( )

242.The equipment list shall contain all required or optional equipment installed in the particular airplane when delivered ( )

241.Three computers collect data and parameters from the systems and put them together on the data link to the display unit( )

240.Identify revisions,additions and deletions by a vertical black line along the outside of the page opposite only that portion of the printed matter that was changed( )

239.列出通常不包括在机械工具内的工作中所需的工具,设备和材料。 ( )