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第三部分：阅读理解（共20小题；每小题2分，满分40分）
fAMillio
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osaurslivedo
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thedaysofdi
osaurstheworldearthwaswarma
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dtheycouldfi
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dtheforeststherediedThe
di
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yearsagoThoughtherewas
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gtothepassagedi
osaursdidexist存在o
ly______o
theearthAformillio
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othi
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edby_______Afootpri
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imalsCrocksa
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osaursdiedoutisthat________
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