再分析弹力。绕研究对象—周，找出研究对象跟其它物体有几个接触面（点），由几个接触面（点）就有可能受几个弹力。然后在分析这些接触面（点）与研究对象之间是否有挤压，若有，则画出弹力。 如何1.16细胞分裂异常（或特殊形ItwasnowtheeighthdaysinceIhadhadmyaccidentinthedesert，andIhadlistenedtothestoryofthemerchantasIwasdrinkingthelastdropofmywatersupply.""Ah，""Isaidtothelittleprince，""thesememoriesofyoursareverycharming；butIhavenotyetsucceededinrepairingmyplane；Ihavenothingmoretodrink；andI，too，shouldbeveryhappyifIcouldwalkatmyleisuretowardaspringoffreshwater！""""Myfriendthefox--""thelittleprincesaidtome.""Mydearlittleman，thisisnolongeramatterthathasanythingtodowiththefox！""""Whynot？""""BecauseIamabouttodieofthirst...""Hedidnotfollowmyreasoning，andheansweredme：""Itisagoodthingtohavehadafriend，evenifoneisabouttodie.I，forinstance，amverygladtohavehadafoxasafriend...""""Hehasnowayofguessingthedanger，""Isaidtomyself.""Hehasneverbeeneitherhungryorthirsty.Alittlesunshineisallheneeds...""Buthelookedatmesteadily，andrepliedtomythought：""Iamthirsty，too.Letuslookforawell...""Imadeagestureofweariness.Itisabsurdtolookforawell，atrandom，intheimmensityofthedesert.Butneverthelesswestartedwalking.Whenwehadtrudgedalongforseveralhours，insilence，thedarknessfell，andthestarsbegantocomeout.Thirsthadmademealittlefeverish，andIlookedatthemasifIwereinadream.Thelittleprince'slastwordscamereelingbackintomymemory：""Thenyouarethirsty，too？""Idemanded.Buthedidnotreplytomyquestion.Hemerelysaidtome：""Watermayalsobegoodfortheheart...""Ididnotunderstandthisanswer，butIsaidnothing.Iknewverywellthatitwasimpossibletocross-examinehim.Hewastired.Hesatdown.Isatdownbesidehim.And，afteralittlesilence，hespokeagain：""Thestarsarebeautiful，becauseofaflowerthatcannotbeseen.""Ireplied，""Yes，thatisso.""And，withou"式分裂）的类型及结果识别电路结构（串、并联关系）；