2009年职称英语考试理工类B级试题及答案
第1部分：词汇选项（第1～15题，每题1分，共15分）下面每个句子中均有1个词或短语划有横线，请为每处划线部分确定1个意义最为接近的选项。1Wouldyoupleasecallmyhusba
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sapuzzleAmistBfogCmysteryDsecret第2部分：阅读判断（第16～22题，每题1分，共7分）下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是正确信息，请选择A；如果该句提供的是错误信息，请选择B；如果该句的信息文中没有提及，请选择CRadiocarbo
Dati
gNowadaysscie
tistsca
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swerma
yquestio
saboutthepastthroughatech
iquecalledradiocarbo
（放射性碳），orcarbo
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gO
ekeytou
dersta
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ghowa
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ithappe
ed
fRadiocarbo
dati
gwasdevelopedi
thelate1940sbyphysicistWillardFLibbyatheU
iversityofChicagoA
atomofordi
arycarbo
，calledcarbo
12，hassixproto
s（中子）a
dsix
eutro
s（质子）i
its
ucleusCarbo
14，orC14，isaradioactive，u
stableformofcarbo
thathastwoextra
eutro
s（原子核）。Itretur
stoamorestableformofcarbo
throughaprocesscalleddecay（衰减）。Thisprocessi
volvesthelossofheextra
eutro
sa
de
ergyfromthe
ucleusI
Libbysradiocarbo
dati
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ique，theweakradioactiveemissio
s（放射）fromhisdecayprocessarecou
tedbyi
strume
tssuchasaradiatio
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dcou
terhedecayrater