ٲʳƴȫȫ3ᣨƵھ+ʵСƫ+ݸĿͥҽһͨ鼮 ʳ ʳ ʳײҩ ҽȫʳļͥӪٿȫ鱣ʳʳƷθʳӪʦ
ƵھеĶ֢ʳ ҽҽѧ屦 βߡ һճʳӦô ﱾݸĿеĶ֢ʳ ҩ䣬ЧǷ ڼȡݸĿʳ βߡ óΪӪ⡣ ܾõʵС ƫʵãЧ ݷḻЧʵƫ ڿơơơ ﶼҵ֢ļСƫ
¥36.80ۣ¥147.00 (2.51)
ӵ칤ȫ6ᣩͼעӵйŴƼٿȫϰӶĶĿѧ֪ʶ ̥ڡ칤ȴԭߡȶĺ˼룬ȫΪʳƷӹ֯ҵֹƷͨߡұʯᣬֱԽŴպͿƼչ״
¥56.60ۣ¥158.00 (3.59)
Է飨ȫ3ᣩЧʵõĽգȤɣйũ ҵѧʳƷѧӪѧԺڷ־ 300+ת֪ʶ200+ʳӪʶ150+ĬֻúڹЦ̽ɳأ˽⽡ʳʳջʳ֡Ӫ⣬ϰߣӡͯݣ
1. úЦжӪȫʳ֡Ӫ⣬õϰߡ ϸ֬ҪʣԷҪάأɳҪʵ ЩӪʣǶҪͨԷáӽʳӸı䰮ʳʱԷ ˮ ʳĻϰߣɽϰߡ 2. ڲ˽ ɳ ʶ ԭʳԴͷԤ θӪʦڲʶĴԡθС٣˽תܣ˽ʳڲӪա й ˽ǻѪѹѪ֬ѪͲ ԭջ
¥128.00ۣ¥128.00
ŰĶСЯ
¥9.50ۣ¥10.00 (9.5)
ʳȫעͰ棡ԬöһԣԱİ꽭ζ;Ŀ⣩ ͳʳĻʷ϶ռͷ飡34ԭ326ʳȫ¼ʳƷ֮Ǭ¡ʮСɽذΪױУرÿ̱ıУèƷ
ԬöһԣԱİ꽭ζԭôԣ ѡױıУǬ¡ʮΪױУرÿ̱ԭòԭ֭ԭζ ѡ˵侫ͼԬöѧˣ ѧֲᣬ¼Ԭöƽʷ ȫ֪ ر¼ԬöȫʳۣԬöʳۣ Ԭöʳ£ԭһʻ ʳʥ Ԭö Ԭö²ɹңʳ ͶȦȫ
¥35.00ۣ¥35.00
ÿеʳ᳤һֵĺӣþָ迴ֵԵõԼҪʳ ƽʱڼʳϣĸԼҪųԣųԣ͵ųԣ һԾͣһԷʱ˵ ˶ˣķ˻һû ȷ˶ˣ˵ Ҷ ֺû˵ˣӾDzˣ ֲʽ״ζˣӾDz飡 ֺݻҲˣӾDzúóԣ ÿԷڽһսۣ Էʲôӣ ˵ˣ һɣ Ҳԣ ι㣿 Ҳԣ һ˰ɣ Ҳϲԣ Ҳ ĺҲ úóԷ ⣬ôϣⱾܹﵽ㡣 ν
¥40.10ۣ¥45.00 (8.92)
¥19.80ۣ¥68.00 (2.92)
¥13.60ۣ¥68.00 (2)
ʳ ֺò ߾ΪС顢ƽ̨ʳ˿ߴ300ƷΪҳߵtop 6⣬62Сʳζ ʽ㡢⡢ ʳ ĥ ˬʳ ֵƷ СҲ Сʳ10ɣż̡߽̳ϡ衢Сʿϸȷ֤һѧͻᡣ
¥47.30ۣ¥49.80 (9.5)
лʳƷȫ лʳƷȫʵʩ ¼лʳƷȫ лʳƷȫʵʩѧϰʳƷȫĹ涨Ź绰4001066666ת6
֤շ ĸƽ Źܷ ĸг巢չŻӪ̻شĸڷоݵҪʮȫ᳣ίԱڶʮ˴λͨȫ᳣ίԱ л·ͨȫ Ȱ˲ɵľԡлʳƷȫġ
¥9.50ۣ¥10.00 (9.5)
лʳƷȫ2021 ԡлʳƷȫġŹ绰4001066666ת6
֤շ ĸƽ Źܷ ĸг巢չŻӪ̻شĸڷоݵҪʮȫ᳣ίԱڶʮ˴λͨȫ᳣ίԱ л·ͨȫ Ȱ˲ɵľԡлʳƷȫġ
¥7.60ۣ¥8.00 (9.5)
רҵľзḻʵѧķרҵʿдõط˵صʾ̬ص㡢ѵ㡣 ʵע⡣ص㷨רҵע⣬߰ĺ塣 ʵӦá˾ʵ⣬ר÷ɹ涨ԭרҵ 涨Ҫ¼ص涨ڶ߲ҡӦá
¥30.40ۣ¥32.00 (9.5)
ҩȫ3 ٲʳƴȫ+ܾõʵСƫ+ݸĿеĶ֢ʳƵھеĶ֢ ҽȫʳ
¥91.60ۣ¥147.00 (6.24)
ݺʳƷٺʳƷͣͼԭϡʳﱾǷӡǩթ֤٣ͻѧȾȾȣͬʳƷٺʳƷٵļⷽ빤ߣȫͻӦԴʩԼĻԸӦʳƷٺٵIJ̬ͬȺߡ
¥59.00ۣ¥59.00
ůĹͼϸIJ裬ʳӰִšʱʳģٳԼӹʳƵζϡҳֹƷġмһȻӵԭζ㸺ֲ֣óԵͣ
¥55.10ۣ¥58.00 (9.5)
֣һٸ⣬ݷḻͼIJïȫͨؽйʳƷӼ⡣
¥31.80ۣ¥39.80 (7.99)
ͷ ʵ רҵԡʾԡʵ
¥27.60ۣ¥29.00 (9.52)
ʮһڣĪԡͯӽǡij֮ʳƷȫд ںʵʹĪóġ⣻ʳȫ̽ԣʱĸʽ˵Īԡͯӽǡij֮
ʮһʵըըĶªϣ ҵһʹͨѧķʽע⣬ĪΪһԵѧʦС˵ʮһڡйʵһ ڵ С˵ͨдһʳʢ磬;ʮũĸķӿ ﻯǮȨļ йѧУ*練ӳʳƷʳȫƷ С˵жֳҵедעˮ⡢ӼϸڵѧǡǡӳĪԶ*ֱӵĹСʳƷȫƵĽ죬ĪԵĴǷdzԤԵġ Ȼٵ˹ϲʱĸʽ˵ ĪԷdzͨͯͯӽд
¥39.80ۣ¥59.00 (6.75)
ʮȫ˴ίڶʮ˴λ429ձͨ˷ʳƷ˷ѷԹ֮ʩСнԼ˷Ѳٽdzͺ٣ѾΪЧķġ ݷʳƷ˷ѷҪò͵ģӦʵڼòʽó涨ıӪ߿ԶԲ ж ߸轱ҲԶ˷ѵȡӦãշѱӦʾ Υ涨Ӫյ߳˷ѵģؼϵطгලŻؼϵطָIJ辯棻ܲģһǧԪһԪ·ʳƷӪʳƷӪʳƷ˷ѵģؼϵطгල
¥3.80ۣ¥4.00 (9.5)
Ȩ 1954ķɳ磬*רҵʼձ Ϊ ּ¼йν跢չọ̈̄ ѧȫһ ȫټͼ浥λ ƺš дԱרҵ طڵרҵʿдƶȣȷͼʼսν̣ӳȫ̬ıں ı Ϊרҵķɳʼʹȫ᳣ίԱṫǵķı˷ḻııԴȼʱݡ ע⾫ صĽΪÿּҪصĽעͣʹܾͼݡ
¥24.70ۣ¥26.00 (9.5)
žĴ죨꼶塷ԴΣġƼݻ˶֮ĸԾ飬ʽǩ ʳƷӼΣġƼݻ¶ŵҽѧ֮ɱDDTijĬࡣжѷԻڿҰжźһ֮ı
1.ͳİ꼶̲Ŀѡ2020СѧָĿ 2.塷ԴΪת۵㡣 3.ߵ ˹Ƽ ʳƷӼΣ Ƽݻ ¶ŵҽѧ֮ɱ DDT ijĬִ࣬ҵ߲ 4.˶ɽ֮ ˶֮ĸ дԾ֮顣 5.ж ѷԻڿҰжźһ֮ı磺1972꣬DDTʮͰʮŷҽDDT2009꣬йDDT 6. ҿԵĶȴΪչֶֻΪĿԡ 7.ʽǩֲ䣬ΪȻź
ʵ顤ιйСʵۣͯʳƷǨ һѧѧξѧӪѧĶͯʳ鱨棻עйŮȺʳƷѡȫӰµĶͯʳƷǨ
һѧѧξѧӪѧĶͯʳ鱨 עйŮȺʳƷѡȫӰµĶͯʳƷǨ
¥42.00ۣ¥42.00
ѧôȤͼ飨ȫ12ᣩѧն5רע7-9-12˼άѵ Сѧ Ҫʳصѧ֪ʶԭ 緹? ĸѹ 7-12СѧѧĶ ѧǰĶͯͼҳӹ ˮ С ʳƷΣ ʳ
һѧܻĪĹʽͷļ㣿ʵں֮ǰѧ룬òѧԴ ֪ѧأʵ һͨѧԿ һŷѧصͼ úӷѧ һúӰѧħ 1ӶѧȤѧ˼ά ּѧѧȤúϲѧѧܾ̰˵̺Ѽʽ̽ʳѧ֪ʶ֣Ķѧϰѧ֪ʶúȤѧϰͳɳӵѧ˼άúܹѧĹ۵ȥ˼ͽ⡣ѧ֪ʶȻҪѧϰлõѧ˼ʽѧϰԺӲԶӰ졣 2Сѧѧ
¥234.50ۣ¥285.60 (8.22)
ֲսʬ2֮ѧʳƷӪ [6-12]ٻųܾƼͼ顢ȫԴͼ顣Ȩǡ¼¡̩ӡǵȹҼй۰̨Ȩר棡
1.ڶгȤζԡ֪ʶԼ汸ִӵĶζ 2.ţϸɫˬеľƷ 3. ʮΪʲô ʴʽɽǸȤĿ֪ʶ 4.ͨĬںʻöչĬڡ 5.ϷȫԡƷƵ֪ȡȤĬԼרҵ֪ʶԡ 6.ȤǰؿƼ֣֪ʶ档 7.ƬռϷС齻Ȥࡣ
¥39.00ۣ¥39.00
ʳƷƼʳĽ²ҵгũ飩 һ¶ȽʳƷƼ˲ҵгǰҵͼ չȫʳƷȫ ˽ʳƷƼչ ʳƷҵгδ
ʳƷƼʳĽ²ҵг ձһ¶ȫʳƷƼ˲ҵгǰҵͼ飬Ӽ ֲ ʳƷҵͷGAFAijϵͳûе̵IJ ٵAmazon GoΪ һ ־˵ʳƷƼؽΪһ˲ҵг
¥72.00ۣ¥72.00
ͯʰٴ 18 ʳƷӪ ҵĵһѧ 飬ѧϰȤĿѧ֪ʶÿĿѧҺͽƼ
ʳΪʲôҪٳԣɴΪʲôĹĵģӪʲôΪʲô СѣǷЩе棿 ôһ͵Ȿͯʰٴ(ʳƷӪ)ͨ˹ϷЦԷǵϵй£ʳƷӪĺɣ
¥22.20ۣ¥30.00 (7.4)
¥117.80ۣ¥203.00 (5.81)
ʳסĿѧѧˣȫ4ᣬ38ʶͯݳƷ 96⣬500+֪ʶ㣬ôֿɼӵĿѧ̽ѧ塢˹ܡʳƷ۲+ԭ+չѭΪ¿ѧɵӣ
ʳס496⣬500 ֪ʶ㣬ôֿɼϺӿѧԡ ۲ ԭ չһӴȥ˼ ѧ ÿѧķʽѧá 鸽˼άͼúӵѧϰϵ
¥64.00ۣ¥128.00 (5)
¥73.80ۣ¥128.00 (5.77)
¥99.80ۣ¥197.00 (5.07)
¥45.80ۣ¥137.00 (3.35)
ӽ跽Ƕȳ̽νִʳƷпѧĻȨ߽Ҫ㡣
¥58.00ۣ¥58.00
¥78.00ۣ¥78.00
֪С˼2018й飬2019йҽ飩 쳦С˼ǻˢĽ֪йѧԺ߸ԺʿоԱ챦ڣʳƷijֿƼ ﳦ ʳҽĿȻ
ӡйͼѧ2018й飨࣬һҽѧգ йҽʦЭҽʦ2019йҽ 2020ʮѧռ оԼϸ10Լռ80% 쳦С˼ǻ ֹӰʳζӰѡʲôİ¡ ֮ǰܶ˳ãΪ˽⡣һ˽⳦С˼Ļǰ ˭Ҵȥ Ĵ𰸣Ҳڳ йѧԺ߸ԺʿоԱ챦оԱֲרŷʳƷذƼ
¥6.40ۣ¥8.00 (8)
ӵ칤ȫ6ͯע4-9-12Ķ鼮ӿöйŴտƼٿȫСѧһ꼶 ȫΪʳƷӹ֯ҵֹƷ,ͨ,ұ,ʯᣬֱԽŴգʽĿհ飬ּö˽ŴƼչ״
¥76.60ۣ¥158.00 (4.85)
İƾ֣һİʤһٸۣǩ棩 ǩ۳ɽİʼ˼ѧԱʵṩ450+İ⣬漰ױʳƷҵáнѧϰİֵǮ
ذƼ ˵߹꣬3000˿γ̷Ŷӳҵư ۣసʵãоٳҵİģ塣 ʹó㷺ƷҳȺȦƵκηİ˾á ҵɵʽİģ壬ãʳƷƷװʵҵ İдɣʵù˿ˬµʵ İƾʱİԽԽûӾƣͣԽԽѡѰƾ֣дȫºİ𰸡
ӾʳƷѧռһʳĻѧ ֪ʶ籩 пѧ£ʳƷѧΪճ¶ȵĻ⣬ȴڿѧ⡣ҽ˹ͼ?ɵڲһȷҽģľȴעδоʳƷѧгϲԹⳣʳ˵ʳƷٿͼ飬Կѧ꾡ԼַͬӰȡ϶ʮʼ˷űؽҪʳIJÿѧַ ʳ ɴԵض⿷ʽ˳ʶԵķ˵տըѹ⿷ʽԼơá֭Ʊַչоʵ顢Ӿַʵ̺ݲ֤ʵΪټ˹ͼ?
¥198.00ۣ¥198.00
緹һ218ҳζϺ⣬ʱˣʳ㡢ʳƷȫһˡںδ緹 һֻ緹һ»ʳ첻
ڹѧأֲð̫ശ߶Ե÷ʢһЩ˵緹DZزٵĹߣ֮⣬뵽ʳ緹Բȥζܵ㶼˴һֻ緹dz;е·ϣһ͵ĵ緹ҲΪ;ȤͲٳɱŶ ྫʺ **ļҳ쳴ȫ˵ʳࡢʡ߲ˡһӦȫַϲˣ 194ɫζȫⱾˣ ڼҲ200 ˣŻζ Źǵ158158 ŹؾΪŹ֣
¥20.90ۣ¥29.80 (7.02)
¥30.00ۣ¥40.00 (7.5)
¥39.90ۣ¥42.00 (9.5)
лʳƷ˷ѷݰ˵ ۽˷⣬пСشǷḻʽ̽С顱ʵҲ˳֮١Ź绰4001066666ת6
лʳƷ˷ѷ۽˷⣬пСشǷḻʽ̽ С ʵҲ˳֮٣ڱϹʳȫںл崫ͳºļֵۣڴٽɫչͿɳչ
¥3.80ۣ¥4.00 (9.5)
˭ҵ ˭ҵ ʳֻǹ֮
¥74.10ۣ¥78.00 (9.5)
ֲǴʳƷķࡢʳƷƷƶGB2760-2014ʳƷӼܷ࣬ҳijһʳƷʹõʳƷӼƷࡢʹͬʱֲڱʱֶЩʳƷӼܽзУԱܿݡȷIJѯѡʹʳƷӼֿ
1.ߴʳƷζо꣬ʵḻ 2.漰ζζʳõԭͻơ 3.ϸ˵Ρ֬ʳƷĵ㡢ζʵ 4.ʹʳƷζøӴ־õŨζ 5.ڶʳƷζͲƷз
¥69.00ۣ¥69.00
ʳʳƷδһġʷNatureScienceȶذƼ ȫλѰġ̡ƻС˵ӳĵδ
ٹʮ꣬Ҳڳп⡣һǶϸµĴͳȻ⣬һDzؼ ̬˰ Ҳر°ϸ⡣ζһ൱ǰ߸ˣѡ ӸзƷưװȫλѰ ¡ƼȻƻС˵ӳĵδ ֻһֲּһּɵ ڸ֮غֻᡢйأ һйĵԻɳģʽʵ ཫȻһ£Ȼ
רҵ決߰棩[װ] רҵʵõĺ決ָϡȫϵͳʵܽᣬ決ѧ900決ʳƷ䷽ԲͬȺӪʳ決½ṩǡ֬䷽
ٰ棬Ϊǧѧں決γй㷺ʹõĽ̿顣 Ϊṩϸģܹרҵ決ۺʵָ ȫ溭Ǻ決֪ʶͬʱṩ900決ʳƷ䷽ָ ϸܳɹĺ決ְҵҪ߱ͱ ԲͬȺӪʳ決½ṩǡ֬䷽ ȫɫӡˢгƷͼص㲽ͼ⡣
¥298.00ۣ¥298.00
ɱʵս--ɱʵս DzɹڵijɱơʳIJִڳɱơʳƷӹڳɱơ۷ڳɱƵݡ
ݷḻ־ʵʰľ߲οֵͼΪΪһĿȻ
¥64.60ۣ¥68.00 (9.5)
40ڲͬ 40ӵ20 40ȺĽǶȳĸӵн塱Ŀġ ܾʳʡܾʳƷ
40ȺʵĿӦ ӵн ͨأԤɷĸѪѹѪ֬ȸ༲ Ȼ40Ⱥ20꣬ô ˶뷨 ʹͬȳ̶ϻȡʳ ճǿԶ߲ˡࡢ֬͵ࡢ֬ţԼʳȶ彡ʳ ˯߲Ҳᵼ·֣Ϊ˯߲ᵼзڵԳĺصƽ⡣ڴٽʳԳķںʳطʱͻɱʳطʱҲ֮٣ױ֡
¥39.90ۣ¥39.90
ڿ6֮գͯ飩ѧ˼ͼ顶ڿǡϵеᣡ ̽Ȼ˼עʳƷȫ̬ƷֵŻ⣬Ӷ˼ǷǵѧʿʦرѧСã
ĬЦѧӵѧ˼ͼ飬ڿǡϵᡣ ڿ Ĭ ɣкӳĻĵЦͲ˵̡ ɭᣬ۽Ự⣬չ״ʵ һڷðգ߶Ƕ˼ 1.Ӧ˵ʳƷ 2.̼ջ˳Ӧйǿ 3.۸Ʒļֵʲôϵ 4.ʱҪػϣ 5.ȻĹϵѧԸıȻ̬ 6.DzԴƵعı߽ ḻͼϸչɭȫòĹڴֵۡ ɶ˼ѧñ֤˼ά⣬γԼļֵ
¥32.00ۣ¥32.00
¥125.80ۣ¥177.00 (7.11)
ȫ2ٲʳƴȫ+Եļҳ˲ͼҽȫвҩʳײҳ˵ʳٿȫ ҽȫʳ
¥65.80ۣ¥88.80 (7.41)
ǵģǵIJϽ֯ŸֻԣԴѾ֪ǷпIJţŹ˵ĴǷĽδֹжʳƷϴ֮õ?ζթ㣬ʳƷٹ֮ұ鲼硣 Ȿʾһṵ̋ĺɫ£ͨʷʳƷߡصݵȤ ѷչʾٵĸնֶΡӿֵķѧƭѧ֮ļҶԿΪֵʳƷꣻIJиŬͬʱҲЩʳƷ̽ӢۣǵĺĻñľǣdzȥľʲôȤζֱָġ Ϊҵе֢ʳƷӢҲһʱʱ˵صǣͬҲǿԡ
¥26.60ۣ¥38.00 (7)
ҪʳƷԭ䷽̺ͲҪ㣬ƷעעʳƷζĵƣԭϷߡࡢӡࡢˮƷȣζ漰ζ𡢽Ρ㡢ζȡ˵ʳƷĽܱȽȫ棬֪ʶʵʰĽܣʵԽǿ
¥69.00ۣ¥69.00
¥37.00ۣ¥37.00
¥64.60ۣ¥68.00 (9.5)
ﳬǿʱԣִ߽ճصĿƼ*֪ʶɹʱԣ ͻȨԣŵߡȫһרҵȣ֪ʶݺ۵Ȩԣ Ŀɶԣ߶ݵİոݽ겣ᣬ䣬渵ͨʤ ɿķ߶гɾ͵ĴѧڡоԱпɿԣ ᆱװ֡ƣֵʵĿն һ̸˵أһھȤ⣬һ㶮Щ·δ⣬ԾԾԵĺĺ֪
¥64.60ۣ¥68.00 (9.5)
ֲսʬ2֮ѧʳƷӪ[6-12] ٻųܾƼͼ顢ȫԴͼ顣Ȩǡ¼¡̩ӡǵȹҼй۰̨Ȩר棡
1.ʮΪʲôʴʽɽǸȤĿ֪ʶ 2.ţϸɫˬ֪ŶӾĴƷϵС 3.Ϸ棬ٷȨƷӰ֪ȽϸߣйӵĶζ 4.֪רˡѹأԢ֣ȷƷʺȨԡ 5.Ȩǡ¼¡̩ӡǵȹҼй۰̨
¥28.00ۣ¥28.00
¥69.00ۣ¥69.00