砺剑·2023相约高考 新高三培优卷(三)3历史答案

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Dear Jim,How're you doing?I'm very glad to hear that you're going to visit a scenic spot in the suburbs.Well,I'd liketo introduce a very famous one,the Juyongguan Great Wall,in the northwest of Beijing.First of all,it has a long history of over 700 years.You can touch the ancient brick walls when walkingaround there.Besides,you can also stand high and enjoy a beautiful view of the whole scenic spot,which must bea unique experience.Above all,it's quite convenient to be there.You can arrive there within two hours by drivingor taking a bus.Anyway,it's a great place to visit.Enjoy your trip then.Yours,Li Hua

18.(1)[Co(SCN)4]2-(2)①还原剂：不是2Co(NO2) 2NH3-Co (HN-N-NH) 2H2O③5：4（每空2分）