实验室需要用480mL 0.1mol•L-1的硫酸铜溶液，所用仪器和操作正确的是（ ）
A．选480mL容量瓶，称取7.68克硫酸铜，加水配成480mL 溶液
B．选500mL容量瓶称取12.0克胆矾，配成500mL溶液
C．选500mL容量瓶称取8.0克硫酸铜，加入500mL水
D．选500mL容量瓶称取12.5克胆矾，配成500mL溶液
答案：D
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| This is Red Star Town. My grandfather has lived here all his life. He 1 my grandmother here and they got married. Red Star Town was called Taping Town before. The government started 2 the wooden houses in this area when the Red Star Town underground station was built. 3 June 2000, Taping Town has become a history. My grandfather missed many things about Taping Town. 4 in the small town knew him well. They all liked him because he used to be a good 5 in a hospital. Now he is old and stays at home. In the past, there were 6 stone and wooden houses around here. Also, there were many big trees. Now new 7 are here and there. The streets are wide and clean. There are all kinds of shops and you can buy anything 8 . My grandfather is happy that life has improved so much, 9 he still feels lonely because he really misses everything in the past. Many of his friends moved away because the government let them 10 in new apartments in new towns. The old town is still beautiful in his heart though it has disappeared (消失). | ||||
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