题目内容：
Questionsarebasedonthefollowingpassage.
In1713,ItalianphysicianBernardinusRamazzinidescribedinhisbookamysterioussetofsymptomshewasnoticingamongartists:
"OfthemanypaintersIhaveknown,almostallIfoundunhealthy...Ifwesearchforthecauseoftheextremelythinandcolorlessappearanceofthepainters,aswellasthesadfeelingsthattheyaresooftenvictimsof,weshouldlooknofurtherthantheharmfulnatureofthepaint."
Hewasoneofthefirsttomaketheconnectionbetweenpaintandartists'health,butitwouldtakecenturiesforpainterstoswitchtoless-harmfulmaterials,evenasmedicinegraduallyfoundsomecluestothepainters'healthproblems.
The1834LondonMedicalandSurgicalJournaldescribessharpstomachpainsoccurringinpatientswithnootherevidenceofintestinal(肠的)disease,thusleadingtheauthorstosuspectthatthis"painter'sstomachache"wasa"nervousaffection"oftheintestinethatoccurswhenlead"isabsorbedintothesystem".
Paintsweren'ttheonlysourceofsaturnism(铅中毒)inpastcenturies,though.Throughthe1500s,leadwaswidelyusedinwinetomakethewinetastessweeter.Occasionally,leadwasevenusedasamedicine.IntheMiddleAges,leadcouldbefoundinmakeup.
Thoughmanykindsofpeoplefellvictimtosaturnism,thediseasewasperhapsmostwidespreadamongthosewhoworkedwithpaint.Thesymptomsofthis"stomachache"ranged,buttheyoftenincludedapaleface,toothloss,fatigue,painfulstomachaches,andsoon.Infact,theillnessthatmanyfamousartistsexperienceddidn'tjustprompttheirgloomyworks--theymighthavebeencausedbythem,too.
Leadpoisoningamonghistoricalfiguresisdifficulttoprove,inpartbecausetheconditionwasnotknownorrecognizedinmostoftheirlifetimes.Wecan'tknowwhetherthemadness,depression,andillnessesmanyRenaissancemastersexperiencedcanbeattributedtotheirpaintorjusttheirphysiologies.
Inhisbook,BernardinusRamazzinidescribedthefollowingsymptomsofmanypaintersexcept__________. A．paleappearance
B．feelingdepressed
C．beingextremelythin
D．beingalwaysenergetic
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答案解析：