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didateshas
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23．（8分）Weofte
seekfoodafterfocusedme
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examResearchersguessthattoomuchthi
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ergyfromthebrai
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Theresearchers
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creasesbloodflowtothehead
Becausethebrai
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dlactateasfuel，researcherswo
deredifthei
creasedflowoffuelrichbloodduri
gexercisecouldfeedawor
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dreducetheurgetoovereat
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asmuchoftheirfavoritepizzaastheywa
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teersretur
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ggive
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utesofhardru
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Whe
theresearchersfactoredi
将……作为因素考虑thecaloriesbur
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edthatthosestude
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Theresearchersdo
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erTheyalsoca
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g，althoughtheresearcherssaythey
fsuspectthatifa
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creasebloodsugara
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1、Whatdowelear
fromthefirstparagraph
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ts
B．Abusybrai
ca
makeo
ehu
gry
C．E
ergyfromthebrai
ca
’tbeusedup
D．A
examresultsi
caloricco
sumptio
most
2、Whatca
aphysicalmoveme
tdo
A．I
creasebloodflow
B．I
creasetheamou
tofbloodsugar
C．Urgeo
etoeatmore
D．Makethebrai
tr