【单选题】Before take off, cabin attendants have to brief all the matters to passengers EXCEPT _________.
A.
Removing sharp and pointed goods
B.
stowing seatbacks & stowing tray tables
C.
stowing in-seat video units and footrests
D.
stowing their carry-on items
【简答题】Gap year is an English expression referring to a period of time—not necessarily a year —in which students take time off and do something other than schooling, such as travel or work. The year out is m...
【简答题】Gap Y ear Gap year is an English expression (also known as “drop year”, “deferred year”, “bridging year”, etc.) referring to a period of time-not necessarily a year in which students take time off and...
【简答题】电路是电流的通路,它是由 、 和 三部分按一定方式组合而成的。 2、电路主要作用包括 和 。
【单选题】隔离开关的主要作用包括()、倒闸操作、拉合无电流或小电流电路。
【简答题】电路是电流的通路,它是由___、___和___三部分按一定方式组合而成的。电路的主要作用包括______和_______。