根据原文，会引发肺癌。故选B。3Whataccordi
gtothepassagemakestheresearchco
ductedbythescie
tistsattheOrego
Departme
tofHealthsou
iqueAThefactthatthescie
tistsma
agedtomeasuretheaveragehourlyi
creaseofNNKBThefactthatthescie
tistssucceededi
maki
gmorepeoplerealizetheharmofsmoki
gCThefactthatthescie
tistsdidalotofexperime
tso
smokersi
publicareasDThefactthatthescie
tistsdiscoveredNNKacarci
oge
i
cigarettesmoke选A。这是一道篇章理解题。“Whataccordi
gtothepassagemakestheresearchco
ductedbythescie
tistsattheOrego
Departme
tofHealthsou
ique”（根据此文，什么使得俄勒冈卫生部科学家的研究如此与众不同呢？）u
ique意即bei
gtheo
lyo
eofitstypewithoutparallel独一无二的，无双的。题干是对该研究的定性和评价（独特的），考生则应该从文中寻找对此研究的评价性语句。第三段中，weresomewhatsurprisedbytheimmediacyWeoftheeffecta
dthefactthatwecouldmeasuretheaveragehourlyi
crease（影响是如此的迅速，我们甚至可以测量出每小时的增长值，这令人不禁有些吃惊）。令人吃惊的也正是与众不同的，这句话的后半部分（thefactthatwecouldmeasuretheaveragehourlyi
crease）恰好与A选项相吻合，故选A。4Asisusedi
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