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λ~ʲôӵ?
λ~w׃Ժͼ(x)(ji)
׃ԣλ~Á(li)λģԱЩԭȻ׃~RxͨÄ(dng)~~(li)λͨ~䮔(dng)Z(y)~
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磬 95Ӣ(gu)ίT(hu)British CounciloΨһ}µ}Ŀ:The Spectacular Eruption of Mount St.Helens
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@}ҰMount St.Helens P(gun)I~ԭM(jn)жλ(hu)ȫҪvľʥ˹ɽćl(f)ԭN(g)Mount St.HelensԼʹ@(g)~ڴČ~`˼(x)(ji)ǸԵ~RҲ鶨λ~(li)Ҵ
Щ~x(dng)г䮔(dng)λ~?
Ƕλ~ķ
1.~R
xһЩ~ı^⣬@N~ױӛסҲԭĶλ
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L(zhng)y
@N~~п@ӵ~һҪ磬
Sequoia ɼ ---ܺöλҲ(jng)鿼c(din)
sodium W(xu)c---yֻҪ֪һNW(xu)Ԫ
Simultaneous ͬr(sh)---L(zhng)@N~c(din)Q(yng)鶨λ~
2.(sh)ָ֣ͨr(sh)gXͰٷֱ
һ(g)}Ŀ@ӆ(wn)ģ
“What are the dates of the TWO major eruptions before 1980?”
ô1980 3185$ 69%@Щ~?yn)L(zhng)ԭȫӢģͻȻܳ(li)ׂ(g)(sh)ʮ@Ҳͺܺûԭҵ
3.~бw,Č~@һc(din)ҶϤöf(shu)
4.̖(ho)
̖(ho)߅~ͨ^(gu)̖(ho)ԭM(jn)жλ“paper conversation”(three cubicmiles) @Щ~](mi)ʲôeڷ̖(ho)ͿԸ(j)̖(ho)ԭM(jn)Ќ
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