丽江政府在城市的保护和发展方面采取的措施有( )
①颁布保护条例和建立专门的管理机构 ②保护古城区,开发新城区
③对古城内的建筑群进行分类保护 ④注重对地区非物质文化遗产的保护
已知:CuO + H2SO4 = Cu SO4 + HO ; Fe + Fe2(SO4)3 = 3Fe SO4
如图,已知△ABC,
Do you want to be Robin's friend? 你想成为Robin的朋友吗?试着给Robin写封信吧!
Dear Robin,
I want to be your friend. I am a ____. I'm ____ years old. I can ____.I can ____. But I can't ____. Can I be your friend? Please tell me! Thank you.
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