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　　车主叶先生称，自己四年前买了一辆威马纯电动车，直到去年为止一直在三星财险投保。不过，他今年打算续保时，却被三星财险无缘无故地拒保了。“一直保到现在三年，第四年他说不能保，但不能保的原因，他一直说不清，就和我们说不能保了。”

　(　)　(　)答(da)：(：)一(yi)是(shi)适(shi)当(dang)提(ti)高(gao)了(le)现(xian)有(you)技(ji)术(shu)指(zhi)标(biao)要(yao)求(qiu)。(。)综(zong)合(he)考(kao)虑(lv)技(ji)术(shu)进(jin)步(bu)和(he)未(wei)来(lai)发(fa)展(zhan)等(deng)情(qing)况(kuang)，(，)《(《)技(ji)术(shu)要(yao)求(qiu)公(gong)告(gao)》(》)提(ti)高(gao)了(le)整(zheng)车(che)能(neng)耗(hao)、(、)续(xu)驶(shi)里(li)程(cheng)、(、)动(dong)力(li)电(dian)池(chi)系(xi)统(tong)能(neng)量(liang)密(mi)度(du)等(deng)现(xian)有(you)技(ji)术(shu)指(zhi)标(biao)要(yao)求(qiu)。(。)燃(ran)料(liao)电(dian)池(chi)汽(qi)车(che)方(fang)面(mian)，(，)结(jie)合(he)燃(ran)料(liao)电(dian)池(chi)汽(qi)车(che)示(shi)范(fan)工(gong)作(zuo)进(jin)展(zhan)，(，)优(you)化(hua)了(le)燃(ran)料(liao)电(dian)池(chi)汽(qi)车(che)纯(chun)氢(qing)续(xu)驶(shi)里(li)程(cheng)、(、)系(xi)统(tong)额(e)定(ding)功(gong)率(lv)、(、)系(xi)统(tong)额(e)定(ding)功(gong)率(lv)与(yu)驱(qu)动(dong)电(dian)机(ji)额(e)定(ding)功(gong)率(lv)之(zhi)比(bi)等(deng)指(zhi)标(biao)要(yao)求(qiu)，(，)补(bu)充(chong)了(le)燃(ran)料(liao)电(dian)池(chi)启(qi)动(dong)温(wen)度(du)、(、)燃(ran)料(liao)电(dian)池(chi)电(dian)堆(dui)额(e)定(ding)功(gong)率(lv)密(mi)度(du)、(、)系(xi)统(tong)额(e)定(ding)功(gong)率(lv)密(mi)度(du)等(deng)指(zhi)标(biao)要(yao)求(qiu)。(。)二(er)是(shi)新(xin)增(zeng)低(di)温(wen)里(li)程(cheng)衰(shuai)减(jian)技(ji)术(shu)指(zhi)标(biao)要(yao)求(qiu)。(。)为(wei)引(yin)导(dao)行(xing)业(ye)企(qi)业(ye)持(chi)续(xu)提(ti)升(sheng)新(xin)能(neng)源(yuan)汽(qi)车(che)产(chan)品(pin)耐(nai)低(di)温(wen)性(xing)能(neng)，(，)《(《)技(ji)术(shu)要(yao)求(qiu)公(gong)告(gao)》(》)提(ti)出(chu)，(，)对(dui)按(an)照(zhao)G(G)B(B)/(/)T(T) ( )1(1)8(8)3(3)8(8)6(6).(.)1(1)《(《)电(dian)动(dong)汽(qi)车(che)能(neng)量(liang)消(xiao)耗(hao)量(liang)和(he)续(xu)驶(shi)里(li)程(cheng)试(shi)验(yan)方(fang)法(fa) ( )第(di)1(1)部(bu)分(fen)：(：)轻(qing)型(xing)汽(qi)车(che)》(》)中(zhong)“(“)附(fu)录(lu)A(A)”(”)进(jin)行(xing)检(jian)测(ce)的(de)纯(chun)电(dian)动(dong)乘(cheng)用(yong)车(che)和(he)N(N)1(1)类(lei)纯(chun)电(dian)动(dong)货(huo)车(che)，(，)低(di)温(wen)里(li)程(cheng)衰(shuai)减(jian)率(lv)不(bu)超(chao)过(guo)3(3)5(5)%(%)的(de)，(，)电(dian)池(chi)系(xi)统(tong)能(neng)量(liang)密(mi)度(du)可(ke)放(fang)宽(kuan)至(zhi)9(9)5(5)W(W)h(h)/(/)k(k)g(g)，(，)纯(chun)电(dian)动(dong)乘(cheng)用(yong)车(che)续(xu)驶(shi)里(li)程(cheng)要(yao)求(qiu)可(ke)放(fang)宽(kuan)至(zhi)1(1)2(2)0(0)k(k)m(m)。(。)三(san)是(shi)明(ming)确(que)了(le)换(huan)电(dian)模(mo)式(shi)车(che)型(xing)相(xiang)关(guan)要(yao)求(qiu)。(。)换(huan)电(dian)模(mo)式(shi)在(zai)降(jiang)低(di)购(gou)车(che)成(cheng)本(ben)、(、)消(xiao)除(chu)里(li)程(cheng)焦(jiao)虑(lv)、(、)提(ti)升(sheng)安(an)全(quan)水(shui)平(ping)方(fang)面(mian)有(you)一(yi)定(ding)优(you)势(shi)。(。)为(wei)支(zhi)持(chi)换(huan)电(dian)模(mo)式(shi)创(chuang)新(xin)发(fa)展(zhan)，(，)结(jie)合(he)行(xing)业(ye)发(fa)展(zhan)和(he)标(biao)准(zhun)实(shi)施(shi)情(qing)况(kuang)，(，)《(《)技(ji)术(shu)要(yao)求(qiu)公(gong)告(gao)》(》)明(ming)确(que)，(，)相(xiang)关(guan)车(che)型(xing)需(xu)满(man)足(zu)G(G)B(B)/(/)T(T) ( )4(4)0(0)0(0)3(3)2(2)《(《)电(dian)动(dong)汽(qi)车(che)换(huan)电(dian)安(an)全(quan)要(yao)求(qiu)》(》)标(biao)准(zhun)。(。)同(tong)时(shi)，(，)为(wei)保(bao)证(zheng)真(zhen)换(huan)电(dian)、(、)能(neng)使(shi)用(yong)，(，)要(yao)求(qiu)申(shen)报(bao)企(qi)业(ye)提(ti)供(gong)保(bao)障(zhang)换(huan)电(dian)服(fu)务(wu)的(de)证(zheng)明(ming)材(cai)料(liao)。(。)流浪汉夺小叶摄影棚。