超碰免费人人操|国产视频二区久久艹人人操|欧美激情第一页在线|久热最新无码中文视频|91精品国际成人|亚洲成人精品在线视频青青草|久草免费高清完整在线观看|你懂的AV在线日本黄网页|国产黄色AV日韩女同网|欧美成人色区导航片av

и Pӛ

l(f)r(sh)g:2017-12-20 ݋:1025

һfи ԇһ(g)sectionһ(g)Ԓ̓ɂ(g)vЌԒֵLͨ2-3nvtҪLһЩЩ_(d)5-6҂֪и (xing)oՓǂ俼߀֣yȶǷdz?yn) σ?ni)漰VҌI(y)ԘO(qing)@ҪHҪ֪֪ҪƼˇvʷ˽⡣

(dng)ȻҪϵ֪RȫĻDzܵģ҂ľǏ ȡP(gun)֪R@r(sh)ӛPӛ׃҂Qи ԇP(gun)I@Ҳи ώڽ̌W(xu)Џ(qing){(dio)ӛPӛҪԵԭ򡣟oՓ뱣15ֵĿ߀_30ֵĿֻҪҪ(zhn)_İи µ挍(sh)xPӛɲ

ӛPӛT̎Ԏ㼯ע߀Լӏ(qing)̕r(sh)ӛԎ ϵļ(x)(ji)λc(din)Ƿذl(f)F(xin)Լ(x)һ(g)mȻ µĕr(sh)^βӛ˺ܶPӛsΨ(d)]ӛc(din)?}r(sh)l(f)F(xin)ԼȻԼĹPӛ?ֻһӛPӛ© ܶ༚(x)(ji)(do)ºƒ(ni) Լ߉݋Ҳy?

ôב(yng)ԓЧӛ Pӛ?׌СVĂ(g)ɲ֪и ӛPӛļɣ

һ ԒӛP(gun)I~

vӛи Pӛķr(sh)ώһһ_ʼ͕(hu)V㣺ӛP(gun)I~ļ^P(gun)I~һָһЩҪČ(sh)~f~(dng)~~ͷ~Ȼ@Ҫעǣ҂Ҫ @(g)ӣȻͬ׽סĂ(g)~@(g)ҪϢ@(g)ĿP(gun)I~}r(sh)ؑ(g)

e(g)ČԒW(xu)ώԃӌ(bo)ώٵfһBҊ@ͺܿܳx}@r(sh)҂ҪڹPӛwF(xin)еҊô҂ԓӛЩ~?

Student: Do you have any advice on how I should cover the story?

Advisor: Well, Max will want to talk to you but I am sure he will tell you to find out things like why the physics department's worried about enrollment?Has the number of students been getting smaller in recent years? By how much? What kinds of plans are they considering to address this problem?

τfķ挦ԒЮֵľwҊҪӛ~R(yng)ԓ@ӣworried?No. stu?how?plan?

ӛ䛾߉݋P(gun)ϵ~׳c(din)

߉݋BһƪµĽ}j(lu)ÿһƪи ¶(yn)֔(jn)?sh)ŒӴκ߉݋P(gun)ϵ֮gҊ߉݋P(gun)ϵD(zhun)ۡ혳eȡ߉݋ͨ^߉݋~߉݋ZwF(xin)һF(xin)߉݋~ͺܸܿc(din) ߉݋~Ѹӛ܉ʹƒ(ni)P(gun)ϵһĿȻӛ̖ ߉݋~ ≠ different, unlike, contradict, rather than <> belong to, be part of due to, because, reason ∧ but, however, yet, in fact, actually, while ӛ̖ ߉݋~ ≠ different, unlike, contradict, rather than <> belong to, be part of due to, because, reason ∧ but, however, yet, in fact, actually, while

ٴѴңõ߉݋R܉ճҊ߉݋~ԼZ@ӟoՓڜyԇx Zֵĕr(sh)һ(g)(yu)ݡ܉ƽr(sh) Ӗ(xn)ע⿂Y(ji)@Щ߉݋~ͶZ÷\(yn)ԼĿZ͌һ܉M(jn)߷֙n

 ĄemY(ji)c(din)ӛҪϢ

Ŵ(sh)ͬW(xu)@ӵw(hu)(dng)҂ µ^ һ(g)̫Ć~ӕr(sh)(hu)˼Sͣ@(g)~ͬr(sh)© ˽ϢȻ^񃺁Űl(f)F(xin)ѽ(jng)֪făȥ

䌍(sh)и ԇУ(dng)F(xin)ҪϢƧĆ~ĕr(sh)vԒ߽^󲿷r¶(hu)ԽጣǷ(f)@(g)Ϣ~҂Ҫľ ~ĕr(sh)סě_(dng)Ӳ^Ƥ  ~Ľ֮ڹPӛӛҪϢ҂Ҫעǣи з(f)F(xin)ጵϢһҪϢOпǿc(din)ҲҪ҂c(din)ӛPӛĵط

Сoeһ(g)ֱܷĶfˎׂ(g)ҪϢ?

Ok, a lot of people think of earth’s orbit around the sun as being perfectly circular, as smooth and as regular as, say, the way that hands move on a well-made watch, but it just doesn’t work that way. You are probably aware that the earth’s orbit around the sun, it is not shaped like a perfect circle. It is more of an oval, it is elliptical. But the shape of this orbit isn’t consistent; it varies over time, over a period of about a thousand years. Sometimes it is a little more circular, sometimes it is more elliptical. And when earth’s orbit is more elliptical, earth is actually closer to the sun during part of the year. Which makes earth, and in particular, the northern hemisphere, warmer. And why is that important? Well, because most of the planet’s glaciers are in the northern hemisphere, and if it gets too warm, then glaciers will stop forming. And we’ve already talked about how that affects earth’s overall temperature

䌍(sh)e@(g)@ôL䌍(sh)ֻ_(d)(g)ҪϢҲfw{ֻ(g)c(din)

䌍(sh)e@(g)@ôL䌍(sh)ֻ_(d)(g)ҪϢҲfw{ֻ(g)c(din)IJֶnjc(din)Ľጡ

һ(g)Ϣ@̫ꖵ܉ǙEAεԭ5Ԓ(f)@(g)ϢmȻF(xin)ƧĆ~oval}¿ һ(g)^Ҋelliptical£

Ok, a lot of people think of earth’s orbit around the sun as being perfectly circular, as smooth and as regular as, say, the way that hands move on a well-made watch, but it just doesn’t work that way. You are probably aware that the earth’s orbit around the sun, it is not shaped like a perfect circle. It is more of an oval, it is elliptical

ڶ(g)Ϣ@(g)܉Π(hu)׃@5Ԓ(f)ጣгF(xin)һ(g)΢ЩyȵĆ~consistentҷֹЩJ(rn)R@(g)~}ֿĵĽo@(g)F(xin)Еr(sh)@(g)܉ΠAc(din)Еr(sh)EAc(din)EAc(din)ĕr(sh)ӽ̫ꖡ@fľ҂ЌW(xu)֪RеĽc(din)@(g)

But the shape of this orbit isn’t consistent; it varies over time, over a period of about a thousand years. Sometimes it is a little more circular, sometimes it is more elliptical. And when earth’s orbit is more elliptical, earth is actually closer to the sun during part of the year

(g)ϢΠ׃(hu)Ӱ푵ϱγfԒһ5Ԓ@(g)Ϣ㲻֪@Ҫc(din)߀˷

Which makes earth, and in particular, the northern hemisphere, warmer. And why is that important? Well, because most of the planet’s glaciers are in the northern hemisphere, and if it gets too warm, then glaciers will stop forming. And we’ve already talked about how that affects earth’s overall temperature

mȻ @ô~R;䌍(sh)ĹPӛҪӛֻ@(g)ҪϢɴ˿֪ETSһ(g)ԻĵĽM(dng) Ϣĕr(sh)Ҫ¸҈(jin)Q^m(x) ˼SҪͬr(sh)fԒ^ܳF(xin)Լ˼S

ġ˽и v}·Д(sh)Ųy

и vֵ·к܏(qing)Ҏ(gu)Եһf֞6(g)E

һϹ(ji)n(ni)

ڶ~(@(ji)n})

B@(g)~(һNF(xin)vʷ¼)

IJͨ^eķʽ߽B̵ķʽU}ľw(ni)

岽(g)v^дW(xu)ᆖώԼᆖ֮o (ÿ(g)ᆖ̎ܿǿc(din))

}M(jn)пY(ji)A((hu)ᵽv}^ȥδa(chn)Ӱ푻h(yun)x)

(dng)˽и vֵ·Ҫƽr(sh)ĹPӛӖ(xn)^Rذ Ϣw{M(jn)@(g)·@܉õذ½Y(ji)(gu)܉_(d)?jng)] ÿһ(g)ϢҲ}ľ

Ոӛסڂ俼и ^Pӛľ(x)ͨ ߷ֻMֱؽ(jng)Ęϣ܉м(x)w(hu)fķNɣ\(yn)õ(x)Сףÿһ(g)ȡÝMijɿҼ!

]