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河南省2023-2024学年七年级第二学期期末教学质量检测试题(数学)试卷答案
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activity.PleasearriveoeTheSchoolEnvironmentClub第二节Paragraph1:Lookingatit,Lucywasshockedandsaid,"Oh,I'msosorry!Whathappened?Heatherbrieflyexplainedandlookedaway.Thatnight,Lucycouldn'tsleep.Shegotup,tumedonherlaptop,anddidsomeresearch.Therewerevariousprostheticlegsforkids.LucywonderedwhyHeatherdidn'thaveone.Thenextday,overlunch,LucyapproachedHeatherandaskedaboutthereason.AfterHeatherreplied,Lucyhadmixedfeelings,rememberinghowmuchshehadpressuredherparentsintobuyingherthepinkskates.ShelookedatHeatherandhadanidea.Paragraph2:LucydecidedtoaskherparentstosellherskaestobuyHeatheraprostheticleg.Thatnight,Lucytoldherparentsaboutherdecisionandexplainedthereason.Herparentslookedateachother,surprised.TheyfeltgladthatLucyhadasoftheart,butaprostheticlegcouldcostmuchmorethanLucy'sskates.Afterdinner,Lucy'sparentshadalongtalkandmadeanimportantdecision.Thenextday,theysoldLucy'snewskates.Andafterdrawingsomemoneyfromthebank,theyboughtHeatheraprostheticleg,whichmadeHeathersohappy.Lucywasdelighted,too,whenseeingHeatherwalkonheramazingnewleg
11.内环境是多细胞生物体内细胞直接生活的液体环境,即细胞外液。下列关于人体内环境的叙述,正确的是DA.血浆与组织液进行双向物质交换,但血浆单向渗人淋巴液B.红细胞、白细胞和心肌细胞所需的营养物质均直接来自组织液C.人体剧烈运动产生的乳酸主要由淋巴液中的缓冲物质中和,以维持机体pI的稳定D.细胞产生的CO2进入组织液后可扩散至脑干,刺激呼吸中枢兴奋,使呼吸加快加深
