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2019-2020年高考英语一轮复习Unit17Laughter课时加强练北师大版选修Ⅰ.阅读理解Axx·云南第二次高中毕业生复习统一检测Asthecenterofgovernmentandeconomy,ourcitycouldbethetargetofterroristandarmedattacks.Intheeventofanattack,thepublicwillbewarnedthroughwirelessemergencyalert警报systems.ListentoinformationbroadcastovertheTVandradio.ProtectyourselffromaterroristoranarmedattackIfanexplosionoccurs,quicklyhideundersomethinglikeatable.Explosionscouldcontinue,soevacuate撤离toasafeplace.Ifafirebreaksoutduetoaterroristoranarmedattack,coveryourmouthandnosewithahandkerchief,andquicklyevacuatewhilekeepingyourselfaslowaspossible.Ifyouaretrapped,taponpipesorotherthingsnearbytoletothersknowwhereyouare.Callingoutloudlyforhelpshouldbethelastthingtodosincethiscouldcausedusttobebreathedin.Evacuatefromamissile导弹attackSinceitwillbedifficulttoidenTIFytheareawherethemissileswillhit,ifyouar...。