关于一道英语阅读题为什么答案是C呢?Haveyoueatentoomuchovertheholidays?Youshouldtryfidgetingforawhile.Thosearoundyoumightnotlikeit,butscratching(movingyournailsagainstapartofyourbody)andtwitching(moving

　　关于一道英语阅读题为什么答案是C呢?

　　Haveyoueatentoomuchovertheholidays?Youshouldtryfidgetingforawhile.Thosearoundyoumightnotlikeit,butscratching(movingyournailsagainstapartofyourbody)andtwitching(movingsuddenlyandquicklywhenyoudon’twantto)isanimportantwayofburningupcalories.

　　Americanresearchershavefoundthatsomepeople’ssquirming(continuouslyturnyourbodywhennervous)andwigging(moveinsmallmovements,especiallyfromsidetoside)equalsseveralmilesofslowrunningeachday.

　　Thescientists,basedattheNationalInstituteofHealth’slaboratoryinPhenix,Arizona,arestudyingwhysomepeoplegetfatandotherstayslim.

　　Inonestudy177peopleeachspent24hoursinaroomintheinstitutewheretheamountofenergyismeasuredbytheiroxygenandcarbondioxidelevels.Bytheendoftheday,somepeoplehadburnedup800caloriesintoe-tapping,(movingthefrontpartofyourfootupanddown)finger-drumming(hittingyourfingerscontinuouslyandlightlyagainstsomethinghard)andothernervoushabits.However,othershadburneduponly100calories.

　　Theresearchersfoundthatslimwomenfidgetmorethanfatwomen,buttherewasnosignificantdifferenceinmen.Heavypeopleburnupmoreenergywhentheyfidgetthanthinpeopledo.

　　32.Accordingtothescientists,thereasonwhysomepeoplegetfatandotherpeoplestayslimisthat____.

　　A.thinpeopleburnuplesscaloriesthanfatpeople

　　B.fatpeopleburnupmorecaloriesthanthinpeople

　　C.thosewhoburnupmorecaloriesthanotherswillbethinner

　　D.thosewhofidgetmorethanotherswillbethinner