题目内容：
Theoldestanimaleverknownrivedfrom1499untilthedayresearchersopeneditsshel（l）.
Ming,anoceanquahog(圆蛤),was1thoughttobearecord-setting402yearsold.ButthescientistswhofounditonaseabednearIcelandin2006nowsayfurther（2）hasrevealedthatitwasanincredible507yearsold.
Theresearchers,whodidn'trealizehowoldMingwaswhentheyfirstfoundit,openedtheancientquahoguptojudgeits（3）bycountinggrowthtingsinsideitsbingeligaments(碟铰韧带).That'sbecausethetingsare"betterprotected"there,scientistPaulButlertellsScienceNordic,which（4）thatMingwasnamedfortheChinesedynastythatruledwhenitwasborn.Butthetingsweresoclosetogetherthatscientistsendeduphavingtocountthetingsontheoutsidetobe（5）,leadingCBStopointoutthatMingcouldhavelivedon,hadscientistsjuststartedthere.
"Wegotitwrongthefirsttimeandmaybewerushedinto（6）ourfindingsbackthen.Butweare（7）certainthatwe'vegotthefightagenow,"saysButler.
Theold,deadquahogstillhasa（8）amounttoofferscience,reportstheHerald-Sun.Scientistsbelieveitwillprovide（9）dataonchangingseatemperaturesoverthelastfivehundredyears--andmaybeevensome（10）tolongevi(长寿).
A．absolutely
B．accurate
C．age
D．analysis
E．Clues
F．Glue
G．Hardly
H．Huge
I．Imitates
J．Initially
K．Notes
L．Old
M．Polishing
N．Publishing
O．Valuable
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