题目内容
That airplane crash dealt a _____ blow to this airline company.
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The high _____ of people on large airliners provides an alluring target for terrorism.
Eating establishments have started using plastic glasses _____ glasses made out of glass to reduce the usefulness of such items as weapons.
Passengers usually will not have to be re-screened if ______ from a domestic flight.
The freight is ready for _____.
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