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λ~ʲôӵ?
λ~w׃Ժͼ(ji)
׃ԣλ~ÁλģԱЩԭȻ׃~RxͨÄ~~λͨ~䮔Z~
(ji)ԣҪҴ~RҪôȫּ~RλQԒfҪЩԭһѵ~Roλ
95ӢίTBritish CounciloΨһ}µ}Ŀ:The Spectacular Eruption of Mount St.Helens
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@}ҰMount St.Helens PI~ԭMжλȫҪvľʥ˹ɽćl(f)ԭNMount St.HelensԼʹ@~ڴČ~`˼(ji)ԣǸԵ~RҲ鶨λ~팤Ҵ𰸡
Щ~xг䮔λ~?
Ƕλ~ķ
1.~R
xһЩ~ı^@N~ױӛסҲԭĶλ
ñȣڴϿһ˹ܲ-------y
һ˵ĂӳҦһ------L
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Ly
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Sequoia ɼ ---ܺöλҲ(jng)鿼c
sodium Wc---yֻҪ֪һNWԪ
Simultaneous ͬr---L@N~cQ鶨λ~
2.(sh)ָ֣ͨrgXͰٷֱ
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“What are the dates of the TWO major eruptions before 1980?”
ô1980 3185$ 69%@Щ~LԭȫӢģͻȻׂܳ(sh)ʮ@ۣҲͺܺûԭҵ
3.~бw֣,Č~@һcҶϤöf
4.̖
̖߅~ͨ^̖ԭMжλ“paper conversation”(three cubicmiles) @Щ~]ʲôeڷ̖ͿԸ(j)̖ԭMЌҡ
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