f l.t si, cl^o Dw t)AO 1'40 IrN rt ru nryft snut v,ro mp ( tt6m hec 199?-1998 ) l'l6n t h i Nsiy thi 'l'hcii gian lim UAi v4t ti ( r 0-07- I 997 12o phirt !:0V__!: (3 tll6nr) I'tqng ttifrt trong. nr$t khu rrlui gr5in mOt sd b6rrg <ldn 1lOV nr.{c song song,dutrng dd1' tdi tij€n rt6i t.1i trilnr l.lifrr tlrd cich xa 1,2 km !6hr 2 ctAy ntrdrn c6 !=2,5.10 - Qrn, t iCt clifn f]onrru'. coi tri4u di€n th6' ra tri tram tri€h ilrd lri klr6ng odi vri brl clua difn tr8 cAc OAy ndi trong khu nhi. a) Klur rrhri drirrg 4.1 rldrr loEi 60\V, c6c rtdn sring bintr thtlcrng : - f i.rrh cdng suAt lrao plri tr€n outlne d6y vri lrigu suit cila mgng ddn. - N€'u cdrn th6rn rn0t bdrr tti$n thi clg s6ng c6c <lJn tha.r, Aori tfre'*nrio? T4 i seo? tr) ttcrir f:lru nhi nrudrt rlt'trt11 56 tr6ng ddn gdh cdc lo4i 40w, 60w, l50W nrri ud,r s,{ng birrh thrr.)rg thi c:6'lr ct'> Lrao nhi€u odn m<fi logi ? t)0u-2 : ( 2 di€'m) Chcl ciic tlUng cu sau : . t r5ng nglr i $m h irilr t rr,r , d6-y lr inh bAn ctiu . t b irrlr nrrfc lr'yrr . l c6c rlgrrg clrlit ltlrrg chtia bidt . I rd si6)' kA 0 ti llliy trirrh bdy vri girlj tlrich r lrrrur-/rrg 6n iln/c nghigm rtdl xdc ri6ng ltx cLia clrht l8ng chda bi0t. ('0u I : ( 3 die'm) Bri ctrrli "Kinlr V4n lroa" d$lc gh6p b&i 3IIIlrrg phEng ei6rrg rrhau irutllrg rudt lrlrin xq vAo trcrng, rndt phdng dr{.y lri m0t tam gi.{c rl€u AIJC. r:6 nr$t hqt ttru} tinh rndu t4i S. <linh kh6i lnrng t) vll trl Vt lsi .l c6 1: ('I li', , .,. .l ([u hirrh, giSi thiclr cdng drlrg cfia "Kinh Vgn lroa" ? d\rctng;tr''ry,dn c0a I tia s6ng tri s phAn xe ldn lr-igt qua mdi gtrctrrg I ltin tr.Cr vd qira s. ci&i thich c6ch v6. the' cir bao nhi0u t ia s6ng tir s c6 cting tinh ctrf{t rl(r r GiAi thiclr. ( ,l rli6'rl) l-i i: ilr,rrr13 cU sau : rlifn tltl mdc rr6i ti6!r vcii rrgudn di€n c6 hi€q di0n thd klr6ng rr6'i. vq,rr k& cti,Ji€rr tlrl ct} gdgr ddi tri sd nrdi dien trri tr6n. lliiy trirrh bd1'vti x,i,4i ttriclr nrgr phuring 6n xr{c dinh hi€u di€n th€ thrrc t)r , ('z & lrni OAu nrdl diQn trr.1 rnr{c n0i ti€p trdn , sao cho : , ciir: gili tri tirn rlrrl-rr: lti c.hirrlr xiic nhAt so vdi ei6 tri thgc, . sd ldrr tltr lri it rrlrdt %