2023山东青岛高三一模答案汇总-政治答案

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2023山东青岛高三一模答案汇总-政治答案试卷答案，以下是该试卷的部分内容或者是答案亦或者啥也没有

A根据ContactDetails部分可知,在rae.centrestage.com,你可以了解学校更多的信息

23.B根据Highlights部分第3段可知,主题为“Filminaweek”的专项兴趣活动是有电影明星梦的孩子的最佳选择

24.CRR"..CentreStage'smainaimistounlockthecreativeabilityineverychild,fromthosewhoneeden-couragement,confidenceandself-esothosewhoarewillingtoperformonthestage!”可知,该艺术学校有助于学生的心智发展

7.D【解析】由题设a=-2(1,-1)+2(2,1)=(2,4),设向量a=(2,4)在基底m=(-1,1),n=(1,2)下的坐标为(m,n),则a=m(-1,1)+n(1,2)=(2,4),即-m+n=2,解得m=0,n=2,即坐标为(0,2).故m+2n=4,选D

20.解:(1)由an+1=2an+1,可得an+1+1=2(an+1),(2分)所以{an+1}是以a1+1=2为首项,2为公比的等比数列,(3分所以an+1=2·21=2”,则an=2”-1,(4分b=log(a,+1)=log:2"=n(5分(2)由(1)知,cn=n·(2"-1)=n·2-n,(6分记T=1×2+2×22+3×23+…+n·2",①2T=1×22+2×23+3×24+…+n·2+1,②①-②得,一Tn=2+22+23+24+…+2”-n·2+2(1=2-n,2+1=(1-n),2"+1-2,(8分l-2所以Tn=(n-1)·2m+1+2,0分所以数列{cn}的前n项和Sn=T(1+2=(n-1),2x+1+2-(1+)n(12分

书面表达One possible versionDear PeterI'm writing to invite you to see the Chinese Painting Exhibition to be held in our city.The exhibition will start at 8: 30 am on Saturday and last till 5: 00 pm on Sunday in the city museum It'ssaid that a large number of Chinese paintings, some of which are original works by famous painters like ZhangDaqian and Qi Baishi, will be on display. Besides, there will be various souvenirs to be sold. I know you re veryinterested in traditional Chinese culture, so I can t wait to tell you the news and hope we can go together.Looking forward to your reply.You

17.D【解析】由变压器的工作原理知,副线圈中交流电的频率跟原线圈中交流电的频率相同,为25Hz,A项错误;由U1:U2=n1:n2=44:1,解得U2=5V。则电阻R1和R2两端电压的波形分别如图1、2所示,设它们的有效值分别为E1和E2,根据有效值的定义有,mT E2R1TTR2RV.则电压表的示数为E=×≈R?T解得E1V,E2=√83.8VB项错误;R1消耗的功率为PER1=1.5W,C项错误,同理知R2消耗的功率为7.25W,则副线圈消耗的功率为8.75W。根据变压器的功率关系知,变压器的输入功率也为8.75W,D项正确。2√2√2o+)+4b图1图2