阅读下面短文，按照要求回答问题(共5小题；每小题3分，满分15分)

TheMonsterofLakeTianchi

The"MonsterofLakeTianchi"intheChangbaiMountainsinJilinprovincenortheastChinaisbackinthenewsafterseveralrecentsightings.ThedirectorofalocaltouristofficeMengFanyingsaidthemonsterwhichseemedtobeblackincolourwastenmetresfromtheedgeofthelakeduringthemostrecentsighting."Itjumpedoutofthewaterlikeaseal—about200peopleonChangbai'swesternpeaksawit"hesaid.AlthoughnoonereallygotaclearlookatthemysteriouscreatureXueJunlinalocalphotographerclaimedthatitsheadlookedlikeahorse.

Inanotherrecentsightingagroupofsoldiersclaimtheysawananimalmovingonthesurfaceofthewater.Thesoldierswhowerewalkingalongthesideofthelakewatchedthecreatureswimmingforabouttwominutes."Itwasgreenish-blackandhadaroundheadwith10-centimetrehorns"oneofthesoldierssaid.

AthirdreportcamefromLiXiaohewhowasvisitingthelakewithhisfamily.Heclaimstohaveseenaroundblackcreaturemovingquicklythroughthewater.Afterthreeorfourhundredmetresitdivedintothewater.Tenminuteslaterthemonsterappearedagainandrepeatedtheaction.MrLiXiaohesaidthatheandhisfamilywereabletoseethemonsterclearlybecausetheweatherwasfineandthelakewascalm.

TherehavebeenreportsofmonstersinLakeTianchisincethebeginningofthelastcenturyalthoughnoonehasseenonecloseup.Somephotoshavebeentakenbuttheyarenotclearbecauseitwastoofaraway.ManypeoplethinkthemonstermaybeadistantcousinoftheLochNessmonsterinScotland.Theyalsothinkthattheremightbesimilarcreaturesinotherlakesaroundtheworld.Scientistshoweveraresceptical.Theysaythatthelow-temperaturelakeisunlikelytobeabletosupportsuchlargelivingcreatures.

LakeTianchiisthehighestvolcaniclakeintheworld.Itis2189metreshighandcoversanareaofabouttensquarekilometres.Inplacesitismorethan370metresdeep.

76.Howmanysightingsofthemonsterdoesthearticlereport?

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77.Whosawthemonsterclearlyandwhy?

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