浙江省宁波市2022学年高二第二学期期末九校联考英语试题答案

浙江省宁波市2022学年高二第二学期期末九校联考英语试题答案-福建高考早知道试卷答案,我们目前收集并整理关于浙江省宁波市2022学年高二第二学期期末九校联考英语试题答案-福建高考早知道得系列试题及其答案，更多试题答案请关注微信公众号：趣找答案/直接访问www.qzda.com(趣找答案)

浙江省宁波市2022学年高二第二学期期末九校联考英语试题答案-福建高考早知道试卷答案，以下是该试卷的部分内容或者是答案亦或者啥也没有

12.【答案】A【命题意图】本题考查函数的令点,导数的应用【解析】设F(x)=xf(x)-2,则F"(x)=rf(x)+2f(x)=r[xf"(x)+2f(x)].因为对于任意的x∈R,恒有y"(x)+2f(x)<0,所以当x>0时,F(x)<0,函数y=F(x)在(0,+∞)上单调递减,当x<0时,F(x)>0所以函数y=F(x)在(-∞,0)上单调递增,所以F(x)=F(0)=-2<0,所以函数y=F(x)没有零点,故g(x)=(x)-3=f)也没有零点

c【解析过程0表示渗透吸水,液泡中细缏与外界溶液存在浓度差是渗透作用的外因,A项速1岁表示产酒精的无氧呼吸第二阶段,⑧表示有氧呼吸第三阶段,可发生在同一细胞中,如酵母菌和大多数植物细胞,B项正确;若叶肉细胞过程③(光合作用暗反应阶段)吸收的CO2的量大于过程⑦释放的CO2的量,只表示叶肉细胞存在有机物积累,但整个植物体氵其他细胞还要消耗有机物,所以植物体内有机物量不一定增加C项错误;图中过程②(光反应过程)O2的释放量小于过程⑧有氧呼吸过程O2的吸收量,则净光合作用量<0,该植物体内有机物的量将减少,D项正确。

解折:反应生成的H+会与HSO继续反应,A项错误;CuSO溶液吸收H2S气体,发生反应的离子L记程式为Cu++H2S=CuS++2H+,B项正确;向Na2CO3溶液中通入少量Cl2,发生反应的离子方程式为3FeQ4+28H+NO=9Fe+NO↑+14H2O,D项正确,土湿会良园晖公、CO+Cl2+H2O~ClO-+cI-+2HCO,C项正确;四氧化三铁溶于稀硝酸,发生反应的离子方程f,个于设,等要东卡鼻是呼:记答案:A中素数:,量

解析CH2CH2OH与CH2OH组成上不相差一个或多个CH2原子团,两者不互为同系物,A项错误CH,OH物油属于酯类在NaOH溶液中可以永解擲底,最终溶液不分层,矿物油属于烃,与NaOH溶液不反应液分层,可用NaOH溶液鉴别植物油和矿物油,B项正确;聚氯乙烯分子中没有碳碳双键,不能使澳的匹化碳溶液褪色,C項错误;两烷的二氯代物有4种,六氯代物和二氢代物数目相同,D项错误。后答案:B算E,你着整(EA

11.ABD考查目标本题主要考查了双曲线的性质,意在考查考生的推理论证能力和转化与化归思想思路点拔由题意可知b=,c=2,又a2+b2=2,所以a=1,b3,所以2,故A正确;点F(-2,0)到直线y=3x的距离d=1,33,故B正确≥21,C错:读1与双曲C的两条渐近线交于M,N两点,则MN45,所以S2m=2452=43,故D正确规律总结求双曲线离心率或其范围的方法:(1)求a,b,c的值,由一==1+直接求e(2)列出含有a,b,c的齐次方程(或不等式),借助于b2=2-清去b,然后转化成关于e的方程(或不等式)求解

I looked at what the second man had dropped; it was jewellery. It all happened too quickly,but I soon realized what had happened. They were burglars. My friend Jeremy, who was waitingfor me, quickly ran out. when hearing unusual noises. We called the police and they were there 5minutes later. I gave the police officer descriptions of the thieves and told them the names theyhad called outYou were brave for trying stop them, "said the officer: We should be able to catch themwith your information. " Jeremy told the officer the owners of the house were on holiday and gavehim a phone number. When the officer left, I told Jeremy about the mistake with the doornumbers. I hadn, t really been brave at all, but my mix-up had stopped the burglars getting awaywith the jewelry. Jeremy's neighbor thanked me a lot when they came back. Actually I have been