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學習快評丨qibao666888　　羅??(luo)塘??(tang)高??(gao)級?(ji)中?(zhong)學??(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??(ge)開?(kai)關??(guan)、一??(yi)個??(ge)滑?(hua)動??(dong)變?(bian)阻??(zu)器??(qi)和??(he)一??(yi)個??(ge)電??(dian)流??(liu)表??(biao)?。??現(xiàn)??(xian)在?(zai)在??(zai)這??(zhe)個??(ge)電??(dian)路??(lu)里??(li)接??(jie)了??(le)一?(yi)個??(ge)干??(gan)燥??(zao)的?(de)風??(feng)箏??(zheng)線??(xian)??，接??(jie)下?(xia)來??(lai)將??(jiang)開??(kai)關??(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??(shuo)明??(ming)在?(zai)干??(gan)燥??(zao)環(huán)??(huan)境?(jing)下??(xia)??，風??(feng)箏??(zheng)線??(xian)是??(shi)不?(bu)導??(dao)電??(dian)的??(de)?。接??(jie)下??(xia)來??(lai)將??(jiang)開??(kai)關??(guan)斷??(duan)開??(kai)??，取??(qu)下??(xia)干??(gan)燥??(zao)的?(de)風??(feng)箏??(zheng)線??(xian)??，將??(jiang)這??(zhe)根??(gen)風??(feng)箏??(zheng)線??(xian)泡??(pao)入??(ru)含??(han)有?(you)雜??(za)質??(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??(feng)箏?(zheng)線??(xian)接??(jie)入??(ru)電??(dian)路??(lu)??，閉??(bi)合??(he)開??(kai)關??(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??(zhuan)??！　〈??(ci)外??(wai)??，潮??(chao)濕??(shi)天??(tian)氣??(qi)下??(xia)??，隨??(sui)風?(feng)飄??(piao)動??(dong)的??(de)風??(feng)箏??(zheng)??，一??(yi)旦?(dan)靠??(kao)近??(jin)或??(huo)者??(zhe)接??(jie)觸??(chu)到??(dao)高??(gao)壓??(ya)線??(xian)路??(lu)??，不??(bu)僅??(jin)容?(rong)易??(yi)造??(zao)成??(cheng)人??(ren)身??(shen)傷??(shang)害??(hai)??，還?(hai)極??(ji)易??(yi)引??(yin)發(fā)??(fa)線??(xian)路??(lu)短??(duan)路??(lu)、跳??(tiao)閘?(zha)等??(deng)安??(an)全??(quan)事?(shi)故??(gu)??。??。