и һ헺ҪĿc(din) l(f)]ԇ͕pһЩСи и
}һ}ӛ˹Pӛ](yng)}Ŀӛ˹Pӛ]
ܶ˶(yng)ӛ˺ܶPӛ}ĕrs֪ԓ߀ώnx헷ǵ҅sl(f)F(xin)]ôrgҁff@ôνQ
1.W(xu)ӛĹPӛ
ĹPӛӛey]зֶεR]c(din)̖ߣѹPӛ Ūһӛ˺ܶ~һӵc(din)]ӛֻ㮔(dng)rˣ~RԼJ(rn)Rô@NrӛùPӛǟoЧ㲻֪ӛʲôҵĕr϶ҵôQDZMӛPӛĕrΣзֶRc(din)̖ƽrӖ(xn)ԼW(xu)s
2.(j)xȥPӛ
҂l(f)F(xin)ʹfСģԇ߀ ĕr@rƽrӖ(xn)ĿץP(gun)I~ıܾ͑(yng)ԓwF(xin)ˡ¿M(jn)ֻܑ{ܿץסXҪ~R ~R(@ҪƽreӖ(xn)صԒÿᆖشӛImportantӛ)@rĹPӛҲnjƶǶ^y҂Ҫ}ɺxȥƹPӛķ(j)ŵλúx헵P(gun)I~RČ(yng)ȥҹPӛ
1)҂Ҫ}ɣ(j)}P(gun)I~ȥλPӛӛ}~Rôͱ^ȥλЩ}Ŀ@һֱ͉ҵ𰸡ͨ@ʧ
2)ʧ҂ҪҪؿPӛ]õM(fi)rgҪ_ʼx헡x헵ĕr҂Ҫ(j)Լ һЩƬϢƽre۵Իx헵߅߅ųF(xin)^~RĕrԭЛ]Ќ(yng)]оų@ЩϢ]ᵽԭ෴Pӛλò(yng)ȵ
@rl(f)F(xin)һ㶼ų2߀ʣ2
3)ʣ@ɂ߀ЎN
a. xP(gun)I~_(d)˼ȥPӛλ(yng)ҵ˼Č(yng)ô@x헾njġע˼Č(yng)һԭ~@Pӛ~RxбČˣҲܛ]ČֻҪӵĺ˼(yng)˾Ϳ@rc(din)?zi)Ŀx(j)(jng)Ԓ}ܶԭ~ҲøġĿԒ}xܶͬxČ
b. x~(yng)߀Ǜ]Ќ(yng)ϡ@rֻһٌһɂx헣ųһӲVܿ϶@һe`ϢxߣxN}xһ㶼(dng)Ȼ@NL(fng)UˣܱCٷְɶҲ] @һоֻ^҂мg(sh)!
}˺ܶζ18-22ַ(ni)(f)(x)˺ܾ ˺ܾ߀Dz
ЂͬW(xu)f 18Ȼf P(gun)Ic(din)˷@ӵԭ“] P(gun)Ic(din)Ѓɂԭ
1֪ P(gun)Ic(din)Ծ͛]ӛPӛ;
2 Ǜ] P(gun)Ic(din)”ķN?
X18ֵr(yng)ԓǃɷNе
һҪӖ(xn)P(gun)Ic(din)һ㶼ʾ̖ҪʾԼ@Щrc(din)ԅY(ji)(gu)
ڶҪ ԾӞλ ˼Ŀ(bio)һһҲ2-3һ𣬾(x)ץȡ˼ ҪѲJ(rn)RĆ~ժ ǿƌW(xu)
һµʹ(yng)ԓǣ
1. Pӛ}ȫĵ߉ȫĵĴ⡣ ӛPӛҪܷͣӛҪc(din)]ӛٷ(f)@^@Ǿ(x)ģrץϢץҪc(din)
2.x헡_x헌(yng)ԭĂ~ĂӣʲôǰǷʾe`xʲôeĂ~ReҪ(zhn)
3. һһҪ 2-3 ͲҪ~R}ԭ⣬ һժ~^ȥҪM(fi)rg
4.ھ ^Ҽ(x)С̖~߉磺actually, in fact, problem, special, but, however, evidenceȵ潛(jng)c(din)һƪ¿Y(ji)10-20@ӵrl(f)F(xin) ͺB(yng)ϲg10ƪõrh15ǰ}Ŀ}Ŀ
5.Ҫ߷(yng)ٶ߀ֹͣr£ ȫƪc(din)Ϣ@P(gun)I~ (x)ץȡӵP(gun)I~˼߷(yng)ٶȺ;(zhn)ȡÿһƪ͉
@ӈԳ1-20ƪTPOкܴի@
}и y҂ԓôk?
1.ҪM}z´𰸣ٰћ] һ@h(yun)h(yun)ءҪ м(x) ˼֮gP(gun)ϵ֮gP(gun)ϵc(din)ʾ~ͺҪ P(gun)I~ҪҜ(zhn) ֮ҪP(gun)I~ Ѿ ЄP(gun)I~һ P(gun)I~ ٶɂǻ
2.Ҫx헷һxeʲôʲôҪx߅ã@B(yng)_}˼·ÿεe}ҪΪ(d)e`ԭǛ] Ҋe?Լ͕ҵԼe`ʽ͕áx헷ˣ}ĕr@_ҵ_𰸡
3.(f)(x)Pӛ҂һֱ(qing){(dio)ξ(x)ӛٶ´`fҪ@ُ(qing){(dio)һ¡Pӛless is more ԽԽáӛúܶɶҲ] ᱾ĩ Pӛoþ ԽԽ࣬PӛԽԽPӛP(gun)I~ һӡǰ߾Ԕ(x)
Y(ji) }--(f)(x)Pӛ-- Һ˼P(gun)I~R--P(gun)I~ --x헷 (x헿ԷڵڶҲԷһ)eƽr(x)Xõģһӏ(qing)ڿoB(ti)ZٿĕrRΣ(wn)l(f)]F(xin)ƽr_ʸߣץϹr
}ģи Pӛs̖
и PӛҪW(xu)(x)s@Ӳ܉?q)ĉ?߀` (ni)ݡһ~R҂hȡǰ3-4ĸgoĸ磺meteoritesmete rt @ӾͲñbܶs̖F(xin)ڽo ؏(f)ʱ^ߵĆ~ôǰÿs̖(ji)ʡܶrgϣ