24.What can we learn about the authorA.He changed jobs several times while in New York.B.He donated much money to improve his company's imageC.He started his company with a friend.D.He encountered difficulties in the process of growing up.25.By saying"do a little spinning of my own"in Paragraph 2,the author probably means hewouldA.start his own businessB.get around for supportC.make his contributions to societyD.look for a casual job instead26.Which of the following words best describe the author?A.Determined and persistent.B.Fortunate and kind.C.Aggressive and innocent.D.Adventurous and enthusiastic.27.Which of the following is the best title for the text?A.Starting Your Own BusinessB.Never Look BackC.Jumping over Economic DownturnsD.Pursue Success in BusinesscDo you think you are guided by a celebrity in your navigation app?Of course not.Thevoice you hear in the navigation software was actually synthesized ()To find out what'sinvolved in the process of reproducing human voices,I approached Speech Morphing,a naturallanguage speech synthesis company,about creating a digital double of my own voice.Given the complexities of speech synthesis,it's quite a shock to find out just how easy it isto order one up.For a basic conversational model,all I have to do is record myself saying a fewhundreds of phrases for roughly an hour.The phrases seem very random:"That's whatCarnegie did.""I'd like to be buried under Yan kee Stadium with JFK."and so on.But they aren't as random as they appear."We choose spoken words that will produce awide enough variety of sounds across a range of emotions,such as sadness and anger,to feedan AI training system.It then teaches itself the specific patterns of a person's speech,"saysSpeech Morphing founder Fathy Yassa.Yassa says there are around 20 tones to choose from,and some of these can be usedinterchangeably,or not at all."Not every tone is needed for every client,"he says."The choicedepends on the target application and use cases.Banking is different from reporting andbroadcasting.”The possibilities for my digital double are limitless.At a training session with SpeechMorphing,I get to hear my digital voice double.The voice comes at me through a pair ofspeakers connected to a laptop.The laptop has software into which whatever text I want it tosay is typed.The software includes tools to make adjustments to the tone,speed and othervocal features that might need to be adjusted if my digital double doesn't come out sounding高三英语第5页共11页

14.下列实验方案或实验结论不正确的是浓NaHCONa.COMnONa,0饱和H,ONa,CO,溶液澄清石灰水①②④A.装置①可以用于实验室制C2B.装置②可以用于除去CO2中混有的少量HCIC.装置③验证Na2O2与水反应的热量变化D.装置④可用于比较NaHCO3和Na2CO,的热稳定性15.印刷电路板(PCB)是用腐蚀液将覆铜板上的部分铜腐蚀掉而制得。电子工业中常用FCl3溶液制作PCB并将腐蚀后废液回收再生，其工艺流程如图：CuPCB过量稀盐酸滤渣过量FeCl,试剂A③覆铜板浓溶液废液②滤液④过量试剂B下列说法不正确的是A.腐蚀后的废液中，主要的金属阳离子有Fe+、Cu2+、Fe2B.过程②中发生的主要反应为：Fe+Cu2+=Cu+Fe2+和Fe+2Fe3t=3Fe2+C.若过程④中加入过量的试剂B为酸化的H2O2,则反应过程中酸性增强D.若在10g滤渣中加入足量盐酸，放出1.12LH2(标准状况)，则滤渣中Cu的质量分数是72%16.下列实验操作、现象及结论都正确的是选项实验操作和现象结论A将一小块金属钠投入CuSO4溶液，钠会浮在溶钠可以置换出铜液上四处游动，同时会有紫红色固体析出B向某溶液中加入稀盐酸产生无色无味气体，将该溶液一定含有C032气体通入澄清石灰水，变浑浊C室温下，向等浓度、等体积的Na2CO3和NaHCO3说明Na2CO3溶液碱性比溶液中，分别滴加几滴酚酞，Na2CO3溶液红色NaHCO3强更深D探究脱氧剂中还原铁粉是否变质，可取少量样品说明脱氧剂未变质溶于盐酸，再滴加KSCN溶液，溶液未变红高一化学学科试题第3页