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某学生实验小组利用图（a）所示电路，测皿多用电表内电池的电动势和电阻“xlk”挡内部电路的总电阻。 使用的器材有：多用电表； 电压表：里程5V，内阻十儿千欧； 滑动变阻器：最大阻...
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回答下列果蝇眼色的遗传问题
第②～⑥步中属于取代反应的有__________填步骤编号
第①步反应的化学方程式是__________
Lookit’sBaldy!Aboyshoutedinmydirectionacrosstheplayground.EventhoughIwasusedtoregularinsults侮辱becauseofthe____11____onmyheditwas____12____horribletohear.IsighedasIheadedbacktotheclass. WhenIwasjust20monthsoldIsufferedserious____13____afterabowlfullofhotoilfellonmyhead.Iwas____14____tohospitalandhadtosaythereforweekswhilethedoctors____15____tosavemylife.Holly’svery____16____tobealivetheytoldMumandDad.Butshe’llbe____17____withscarsonherheadandofcourseherhairwon’tgrowthere. AsachildIcaredmuchaboutmyscarssoI____18____woreascarftocoverthemupwhenIlefthome.____19____Ididn’tpeoplewouldcallmehorriblenameslikeBaldy.Althoughmyfriendswerealwayscomfortingmetheynever____20____understoodhowitfelt. ThenthroughthehospitalIwas____21____toachildren’sburnscampwherechildrenlikemecangetanyhelp.ThereI____22____14-year-oldStephaniewhoseburnsarealotmoreseriousthanmine.Butsheisso____23____thatsheneverletsanyoneputherdown.Youshouldn’t____24____whatpeoplesayaboutwhatyoulooklikebecausewe’renotdifferentfromanyoneelseHollyshe____25____me.Andyoudon’tneedtowearascarfbecausey0oulookgreat____26____it!ForthefirsttimeinmylifeIcouldspeaktosomeonewho’dbeenthroughsomething____27____.Soweekslateratmy13thbirthdayparty____28____byherbraveryIgaveupmyscarfandshowedoffmyscars.Itfeltamazingnothavingto____29____awaybehindmyscarf. NowIam____30____ofwhatIlooklikeandmuchhappierbecauseIhaverealizeditisyourpersonality个性thatdecideswhoyoutrulyare.
Lookit’sBaldy!Aboyshoutedinmydirectionacrosstheplayground.EventhoughIwasusedtoregularinsults侮辱becauseofthe____11____onmyheditwas____12____horribletohear.IsighedasIheadedbacktotheclass. WhenIwasjust20monthsoldIsufferedserious____13____afterabowlfullofhotoilfellonmyhead.Iwas____14____tohospitalandhadtosaythereforweekswhilethedoctors____15____tosavemylife.Holly’svery____16____tobealivetheytoldMumandDad.Butshe’llbe____17____withscarsonherheadandofcourseherhairwon’tgrowthere. AsachildIcaredmuchaboutmyscarssoI____18____woreascarftocoverthemupwhenIlefthome.____19____Ididn’tpeoplewouldcallmehorriblenameslikeBaldy.Althoughmyfriendswerealwayscomfortingmetheynever____20____understoodhowitfelt. ThenthroughthehospitalIwas____21____toachildren’sburnscampwherechildrenlikemecangetanyhelp.ThereI____22____14-year-oldStephaniewhoseburnsarealotmoreseriousthanmine.Butsheisso____23____thatsheneverletsanyoneputherdown.Youshouldn’t____24____whatpeoplesayaboutwhatyoulooklikebecausewe’renotdifferentfromanyoneelseHollyshe____25____me.Andyoudon’tneedtowearascarfbecausey0oulookgreat____26____it!ForthefirsttimeinmylifeIcouldspeaktosomeonewho’dbeenthroughsomething____27____.Soweekslateratmy13thbirthdayparty____28____byherbraveryIgaveupmyscarfandshowedoffmyscars.Itfeltamazingnothavingto____29____awaybehindmyscarf. NowIam____30____ofwhatIlooklikeandmuchhappierbecauseIhaverealizeditisyourpersonality个性thatdecideswhoyoutrulyare.
将玉米的PEPC酶基因导入水稻后测得光照强度对转基因水稻和原种水稻的气孔导度及光合速率的影响结果如下图所示注气孔导度越大气孔开放程度越高 CO2通过气孔进人叶肉细胞后首先与__________结合而被固定固定产物的还原需要光反应提供__________
Readthisstory________youwillrealizethatnoteverythingcanbeboughtwithmoney.
Thetrafficonthemainstreetshasalongergreensignalthan______onthesmallones.
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Lookit’sBaldy!Aboyshoutedinmydirectionacrosstheplayground.EventhoughIwasusedtoregularinsults侮辱becauseofthe____11____onmyheditwas____12____horribletohear.IsighedasIheadedbacktotheclass. WhenIwasjust20monthsoldIsufferedserious____13____afterabowlfullofhotoilfellonmyhead.Iwas____14____tohospitalandhadtosaythereforweekswhilethedoctors____15____tosavemylife.Holly’svery____16____tobealivetheytoldMumandDad.Butshe’llbe____17____withscarsonherheadandofcourseherhairwon’tgrowthere. AsachildIcaredmuchaboutmyscarssoI____18____woreascarftocoverthemupwhenIlefthome.____19____Ididn’tpeoplewouldcallmehorriblenameslikeBaldy.Althoughmyfriendswerealwayscomfortingmetheynever____20____understoodhowitfelt. ThenthroughthehospitalIwas____21____toachildren’sburnscampwherechildrenlikemecangetanyhelp.ThereI____22____14-year-oldStephaniewhoseburnsarealotmoreseriousthanmine.Butsheisso____23____thatsheneverletsanyoneputherdown.Youshouldn’t____24____whatpeoplesayaboutwhatyoulooklikebecausewe’renotdifferentfromanyoneelseHollyshe____25____me.Andyoudon’tneedtowearascarfbecausey0oulookgreat____26____it!ForthefirsttimeinmylifeIcouldspeaktosomeonewho’dbeenthroughsomething____27____.Soweekslateratmy13thbirthdayparty____28____byherbraveryIgaveupmyscarfandshowedoffmyscars.Itfeltamazingnothavingto____29____awaybehindmyscarf. NowIam____30____ofwhatIlooklikeandmuchhappierbecauseIhaverealizeditisyourpersonality个性thatdecideswhoyoutrulyare.
从水浸后的滤液中得到K2SO4晶体的方法是__________
_______whichuniversitytoattendthegirlaskedherteacherforadvice.
在诱导离体菊花茎段形成幼苗的过程中下列生命活动不会同时发生的是
以Al和NiOOH为电极NaOH溶液为电解液组成一种新型电池放电时NiOOH转化为NiOH2该电池反应的化学方程式是__________
回答下列果蝇眼色的遗传问题
Lookit’sBaldy!Aboyshoutedinmydirectionacrosstheplayground.EventhoughIwasusedtoregularinsults侮辱becauseofthe____11____onmyheditwas____12____horribletohear.IsighedasIheadedbacktotheclass. WhenIwasjust20monthsoldIsufferedserious____13____afterabowlfullofhotoilfellonmyhead.Iwas____14____tohospitalandhadtosaythereforweekswhilethedoctors____15____tosavemylife.Holly’svery____16____tobealivetheytoldMumandDad.Butshe’llbe____17____withscarsonherheadandofcourseherhairwon’tgrowthere. AsachildIcaredmuchaboutmyscarssoI____18____woreascarftocoverthemupwhenIlefthome.____19____Ididn’tpeoplewouldcallmehorriblenameslikeBaldy.Althoughmyfriendswerealwayscomfortingmetheynever____20____understoodhowitfelt. ThenthroughthehospitalIwas____21____toachildren’sburnscampwherechildrenlikemecangetanyhelp.ThereI____22____14-year-oldStephaniewhoseburnsarealotmoreseriousthanmine.Butsheisso____23____thatsheneverletsanyoneputherdown.Youshouldn’t____24____whatpeoplesayaboutwhatyoulooklikebecausewe’renotdifferentfromanyoneelseHollyshe____25____me.Andyoudon’tneedtowearascarfbecausey0oulookgreat____26____it!ForthefirsttimeinmylifeIcouldspeaktosomeonewho’dbeenthroughsomething____27____.Soweekslateratmy13thbirthdayparty____28____byherbraveryIgaveupmyscarfandshowedoffmyscars.Itfeltamazingnothavingto____29____awaybehindmyscarf. NowIam____30____ofwhatIlooklikeandmuchhappierbecauseIhaverealizeditisyourpersonality个性thatdecideswhoyoutrulyare.
写出同时满足下列条件的E的所有同分异构体的结构简式__________ ①只含有一种官能团②链状结构且无—O—O—③核磁共振氢谱只有2种峰
Lookit’sBaldy!Aboyshoutedinmydirectionacrosstheplayground.EventhoughIwasusedtoregularinsults侮辱becauseofthe____11____onmyheditwas____12____horribletohear.IsighedasIheadedbacktotheclass. WhenIwasjust20monthsoldIsufferedserious____13____afterabowlfullofhotoilfellonmyhead.Iwas____14____tohospitalandhadtosaythereforweekswhilethedoctors____15____tosavemylife.Holly’svery____16____tobealivetheytoldMumandDad.Butshe’llbe____17____withscarsonherheadandofcourseherhairwon’tgrowthere. AsachildIcaredmuchaboutmyscarssoI____18____woreascarftocoverthemupwhenIlefthome.____19____Ididn’tpeoplewouldcallmehorriblenameslikeBaldy.Althoughmyfriendswerealwayscomfortingmetheynever____20____understoodhowitfelt. ThenthroughthehospitalIwas____21____toachildren’sburnscampwherechildrenlikemecangetanyhelp.ThereI____22____14-year-oldStephaniewhoseburnsarealotmoreseriousthanmine.Butsheisso____23____thatsheneverletsanyoneputherdown.Youshouldn’t____24____whatpeoplesayaboutwhatyoulooklikebecausewe’renotdifferentfromanyoneelseHollyshe____25____me.Andyoudon’tneedtowearascarfbecausey0oulookgreat____26____it!ForthefirsttimeinmylifeIcouldspeaktosomeonewho’dbeenthroughsomething____27____.Soweekslateratmy13thbirthdayparty____28____byherbraveryIgaveupmyscarfandshowedoffmyscars.Itfeltamazingnothavingto____29____awaybehindmyscarf. NowIam____30____ofwhatIlooklikeandmuchhappierbecauseIhaverealizeditisyourpersonality个性thatdecideswhoyoutrulyare.
由于酵母菌利用淀粉的能力很弱有人将地衣芽孢杆菌的α-淀粉酶基因转入酵母菌中经筛选得到了可高效利用淀粉的工程菌菌种过程如图甲所示 以淀粉为原料用工程酵母菌和普通酵母菌在相同的适宜条件下密闭发酵接种__________菌的发酵罐需要先排气其原因是__________
大豆植株的体细胞含40条染色体用放射性60Co处理大豆种子后筛选出一株抗花叶病的植株X取其花粉经离体培养得到若干单倍体植株其中抗病植株占50％下列叙述正确的是
哺乳动物红细胞的部分生命历程如下图所示图中除成熟红细胞外其余细胞中均有核基因转录的RNA下列叙述错误的是
Lookit’sBaldy!Aboyshoutedinmydirectionacrosstheplayground.EventhoughIwasusedtoregularinsults侮辱becauseofthe____11____onmyheditwas____12____horribletohear.IsighedasIheadedbacktotheclass. WhenIwasjust20monthsoldIsufferedserious____13____afterabowlfullofhotoilfellonmyhead.Iwas____14____tohospitalandhadtosaythereforweekswhilethedoctors____15____tosavemylife.Holly’svery____16____tobealivetheytoldMumandDad.Butshe’llbe____17____withscarsonherheadandofcourseherhairwon’tgrowthere. AsachildIcaredmuchaboutmyscarssoI____18____woreascarftocoverthemupwhenIlefthome.____19____Ididn’tpeoplewouldcallmehorriblenameslikeBaldy.Althoughmyfriendswerealwayscomfortingmetheynever____20____understoodhowitfelt. ThenthroughthehospitalIwas____21____toachildren’sburnscampwherechildrenlikemecangetanyhelp.ThereI____22____14-year-oldStephaniewhoseburnsarealotmoreseriousthanmine.Butsheisso____23____thatsheneverletsanyoneputherdown.Youshouldn’t____24____whatpeoplesayaboutwhatyoulooklikebecausewe’renotdifferentfromanyoneelseHollyshe____25____me.Andyoudon’tneedtowearascarfbecausey0oulookgreat____26____it!ForthefirsttimeinmylifeIcouldspeaktosomeonewho’dbeenthroughsomething____27____.Soweekslateratmy13thbirthdayparty____28____byherbraveryIgaveupmyscarfandshowedoffmyscars.Itfeltamazingnothavingto____29____awaybehindmyscarf. NowIam____30____ofwhatIlooklikeandmuchhappierbecauseIhaverealizeditisyourpersonality个性thatdecideswhoyoutrulyare.
下图表示具有生物活性的蛙坐骨神经－腓肠肌标本神经末梢与肌细胞的接触部位类似于突触称神经—肌接头下列叙述错误的是
Theairport_______nextyearwillhelppromotetourisminthisarea.
瘦素是动物脂肪细胞分泌的一种蛋白质激素机体脂肪储存量越大瘦素分泌越多下丘脑的某些细胞接受到瘦素信号后机体能通过复杂的神经内分泌网络调节摄食行为组成瘦素的基本单位是__________在核糖体中合成的瘦素蛋白必须通过__________进行加工和运输才能分泌到细胞外随__________运送到全身各处下丘脑中的靶细胞通过__________来识别瘦素
将玉米的PEPC酶基因导入水稻后测得光照强度对转基因水稻和原种水稻的气孔导度及光合速率的影响结果如下图所示注气孔导度越大气孔开放程度越高 分析图中信息PEPC酶所起的作用是__________转基因水稻更适宜栽种在__________环境中
由于酵母菌利用淀粉的能力很弱有人将地衣芽孢杆菌的α-淀粉酶基因转入酵母菌中经筛选得到了可高效利用淀粉的工程菌菌种过程如图甲所示 图甲中过程①需要的酶有__________为达到筛选目的平板内的固体培养基应以__________作为唯一碳源②③过程需要重复几次目的是__________
______yousaidatthemeetingdescribesabrightfutureforthecompany.
Lookit’sBaldy!Aboyshoutedinmydirectionacrosstheplayground.EventhoughIwasusedtoregularinsults侮辱becauseofthe____11____onmyheditwas____12____horribletohear.IsighedasIheadedbacktotheclass. WhenIwasjust20monthsoldIsufferedserious____13____afterabowlfullofhotoilfellonmyhead.Iwas____14____tohospitalandhadtosaythereforweekswhilethedoctors____15____tosavemylife.Holly’svery____16____tobealivetheytoldMumandDad.Butshe’llbe____17____withscarsonherheadandofcourseherhairwon’tgrowthere. AsachildIcaredmuchaboutmyscarssoI____18____woreascarftocoverthemupwhenIlefthome.____19____Ididn’tpeoplewouldcallmehorriblenameslikeBaldy.Althoughmyfriendswerealwayscomfortingmetheynever____20____understoodhowitfelt. ThenthroughthehospitalIwas____21____toachildren’sburnscampwherechildrenlikemecangetanyhelp.ThereI____22____14-year-oldStephaniewhoseburnsarealotmoreseriousthanmine.Butsheisso____23____thatsheneverletsanyoneputherdown.Youshouldn’t____24____whatpeoplesayaboutwhatyoulooklikebecausewe’renotdifferentfromanyoneelseHollyshe____25____me.Andyoudon’tneedtowearascarfbecausey0oulookgreat____26____it!ForthefirsttimeinmylifeIcouldspeaktosomeonewho’dbeenthroughsomething____27____.Soweekslateratmy13thbirthdayparty____28____byherbraveryIgaveupmyscarfandshowedoffmyscars.Itfeltamazingnothavingto____29____awaybehindmyscarf. NowIam____30____ofwhatIlooklikeandmuchhappierbecauseIhaverealizeditisyourpersonality个性thatdecideswhoyoutrulyare.
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