关于A61的百科

• 设等比数列的前项和为，若，，则（  ）A.61                 B.62           ...

• 问题详情：设等比数列的前项和为，若，，则（  ）A.61                 B.62                 C.63                 D.75【回答】C【解析】分析：利用等比数列*质求.详解：由题得成等比数列，所以3,12，成等比数列，所以知识点：数列题型：...
• 2020-06-198357

• Tosupporthissickwifeandearnapaycheck,a61-year-oldIowama...

• 问题详情：Tosupporthissickwifeandearnapaycheck,a61-year-oldIowamannamedSteveSimoffsometimeswalks35milestohisjobasanovernightgatekeeper.Simofsaidthatheleaveshisbasementapartmentinasmalltownatabout3:30p.m.togettotheLakessidehotelandCasinoinOsceolawherehe...
• 2019-04-216111

• 阅读短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项。WangFengqin,a61-ye...

• 问题详情：阅读短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项。WangFengqin,a61-year-oldwomaninBeijing,volunteerstosort(分类)rubbishinherlivingareainBeijing’sChaoyangDistrict.At6:30everymorning,whilehalfofBeijingisstillinsleepingdreamsinbedo...
• 2019-04-3012317