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學(xué)習(xí)快評(píng)丨qibao666888　　羅??(luo)塘??(tang)高??(gao)級(jí)??(ji)中??(zhong)學(xué)??(xue) 劉??(liu)老??(lao)師??(shi)：我??(wo)們??(men)現(xiàn)??(xian)在??(zai)所??(suo)用??(yong)到??(dao)的??(de)器?(qi)材??(cai)是??(shi)一?(yi)節(jié)??(jie)干?(gan)電??(dian)池??(chi)、一??(yi)個(gè)??(ge)開(kāi)??(kai)關(guān)??(guan)、一??(yi)個(gè)??(ge)滑??(hua)動(dòng)??(dong)變??(bian)阻??(zu)器??(qi)和?(he)一??(yi)個(gè)?(ge)電?(dian)流??(liu)表??(biao)??。?現(xiàn)??(xian)在??(zai)在??(zai)這??(zhe)個(gè)??(ge)電??(dian)路??(lu)里??(li)接??(jie)了??(le)一??(yi)個(gè)??(ge)干??(gan)燥??(zao)的??(de)風(fēng)??(feng)箏??(zheng)線??(xian)?，接??(jie)下??(xia)來(lái)??(lai)將??(jiang)開(kāi)??(kai)關(guān)??(guan)閉??(bi)合?(he)?，可??(ke)以??(yi)看?(kan)到??(dao)電??(dian)流?(liu)表??(biao)的??(de)示??(shi)數(shù)??(shu)仍??(reng)然??(ran)為??(wei)0??。說(shuō)??(shuo)明??(ming)在??(zai)干??(gan)燥?(zao)環(huán)??(huan)境??(jing)下??(xia)?，風(fēng)??(feng)箏??(zheng)線??(xian)是??(shi)不??(bu)導(dǎo)??(dao)電?(dian)的??(de)??。接??(jie)下??(xia)來(lái)??(lai)將??(jiang)開(kāi)??(kai)關(guān)??(guan)斷??(duan)開(kāi)??(kai)?，取??(qu)下??(xia)干??(gan)燥??(zao)的??(de)風(fēng)??(feng)箏??(zheng)線??(xian)?，將??(jiang)這??(zhe)根??(gen)風(fēng)??(feng)箏??(zheng)線??(xian)泡??(pao)入??(ru)含?(han)有??(you)雜??(za)質(zhì)??(zhi)的??(de)水??(shui)中??(zhong)?，再??(zai)將??(jiang)它??(ta)取??(qu)出??(chu)??。然??(ran)后?(hou)將??(jiang)浸??(jin)滿??(man)水??(shui)的??(de)風(fēng)??(feng)箏??(zheng)線??(xian)接??(jie)入??(ru)電??(dian)路??(lu)?，閉??(bi)合??(he)開(kāi)??(kai)關(guān)??(guan)?，可??(ke)以??(yi)發(fā)??(fa)現(xiàn)??(xian)電??(dian)流??(liu)表??(biao)的??(de)指??(zhi)針??(zhen)有??(you)了??(le)明?(ming)顯??(xian)偏??(pian)轉(zhuǎn)??(zhuan)??。　　當(dāng)??(dang)下??(xia)春??(chun)光??(guang)正?(zheng)好??(hao)??，很??(hen)多??(duo)人??(ren)選??(xuan)擇??(ze)外??(wai)出??(chu)春??(chun)游??(you)??，放??(fang)風(fēng)??(feng)箏??(zheng)也??(ye)成??(cheng)為??(wei)受??(shou)歡??(huan)迎??(ying)的??(de)項(xiàng)??(xiang)目??(mu)之??(zhi)一??(yi)??，但??(dan)放??(fang)風(fēng)??(feng)箏??(zheng)引??(yin)發(fā)??(fa)的??(de)危??(wei)險(xiǎn)?(xian)事??(shi)件??(jian)??，也??(ye)進(jìn)??(jin)入?(ru)了?(le)高??(gao)發(fā)??(fa)期??(qi)??。??看??(kan)似??(si)柔??(rou)軟??(ruan)的?(de)風(fēng)??(feng)箏??(zheng)線??(xian)??，可??(ke)能??(neng)成??(cheng)為??(wei)隱??(yin)形??(xing)的??(de)“兇??(xiong)器??(qi)”??。。