Question

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21 至 25
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A crop circle is aphenomenon 21 crop plants with upright Stalks, Such as wheat,

barley, corn, and so on, are flattened or bent over, producing circular and other ComDlex

gecometric patterns when viewed from the air Crop _circles were firStL reported in large

numberS during the last decades of the twentieth century in farm fields in rural England, but

they have Since becomea worldwide occurrence .

了本
VariouS 2     ave been 和 才 eXplain their formation, rangeing from natural
odt        事且給 =SW

CausSe$S to _hoaxeS to the + Mt 亨本 GIODSGIUGle 2 UHGQSs and

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eXtraterreStrlal belngS, with some claiming that they are communications from aliens. While

時作訊!

many have been proven to be practical Jokes, crop circles continue to appear regularly, and

 

 

both the genera] public and scientists fascinated by them. 24 similar mySterious
0

。 phenomena, there are those who believe crop clircles originate in arealm _25 _the known
physica  World,  and there are those who reject Such 2

  

NOW 2   onwnh   _“(D),where