难度B/C级Feast On Turkey and Good Wishes at Thanksgiving Four weeks ago US children dressed as monsters and asked for sweets．That wasHalloween．‘In a few ...
passege2 Single-parent kids do best Single mums are better at raising their kids than two parents – at least in the bird world. Mother zebra finches h...
GoalofAmericanEducation EducationisanenormousandexpensivepartofAmericanlife.Itssizeismatchedbyitsvariety. DifferencesinAmericanschoolscomparedwiththos...
FlightDistance Anyobservantpersonhasnoticedthatawildanimalwillallowamanorotherpotentialenemytoapproachonlyuptoagivendistancebeforeitflees.“Flightdista...
Ulcers Eventhoughulcersappeartoruninfamilies,lifestyleplaysmoreofrolethangeneticfactorsincausingtheillness,accordingtoareportintheApril13thJournalofIn...
CigarsInstead? Smokingoneortwocigarsadaydoublestheriskofcancersofthelip,tongue,mouth,andthroat,accordingtoagovernmentstudy. Dailycigarsalsoincreasethe...
Common-coldSense Youcan’tbeatit,butyoudon’thavetojoinit.Maybeitgotthename“commoncold”becauseit’smorecommoninwinter.Thefactis,though,beingcolddoesn’tha...
DrugReactions—AMajorCauseofDeath Adversedrugreactionsmaycausethedeathsofover100,000UShospitalpatientseachyear,makingthemaleadingcauseofdeathnationwide...
FDA:Human,AnimalWasteThreatensProduce Thebiggestfoodsafetyriskforfreshfruitsandvegetablesastheyaregrown,pickedorprocessedcomesfromhumanandanimalwaste,...
MoreaboutAlzheimer’sDisease ScientistshavedevelopedskinteststhatmaybeusedinthefuturetoidentifypeoplewithAlzheimer’sdiseaseandmayultimatelyallowphysici...