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C。
EasternQuakesCanTriggerBigShakes
InthefirstweekofNovember 2011, peopleincentralOklahomaexperiencedmorethantwodozenearthquakes. Thelargest, amagnitude 5.6 quake, shookthousandsoffansinacollegefootballstadium, causedcracksinafewbuildingsandrattledthenervesofmanypeoplewhohadneverfeltaquakebefore. Oklahomaisnotanareaofthecountryfamousforitsquakes. IfyouwatchthenewsonTV, youseereportsaboutallsortsofnaturaldisastershurricanes, tornadoes, floodingandwildfires, tonameafew. Butthemostdangeroustypeofnaturaldisaster, andalsothemostunpredictable, istheearthquake.
ResearchersattheU.S. GeologicalSurveyestimatethatseveralmillionearthquakesrattletheglobeeachyear. Thatmaysoundscary, butpeopledontfeelmanyofthetremorsbecausetheyhappeninremoteandunpopulatedregions. Manyquakeshappenundertheocean, andothershaveaverysmallmagnitude, orshakingintensity.
Amagnitude 5.8 earthquakethatstruckcentralVirginiatheafternoonofAugust 23, 2011, wasfeltfromcentralGeorgiatosoutheasternCanada. Inmanyurbanareas, includingWashington, D.C., andNewYorkCity (WallStreetshown), peoplecrowdedthestreetswhileengineersinspectedbuildings. Credit: Wikimedia/AlexTabak
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