冶炼K、Ca、Na、Al等活泼金属通常采用的方法是 [ ]
A.热分解法
B.热还原法
C.电解其熔融盐或氧化物
D.电解其盐的水溶液
答案:C
请阅读下面短文,根据短文内容从每小题所给的A、B、C、D四个选项中选出最佳选项。
1. How much are the musical tickets for two children?
A. 16 pounds, B, 35 pounds. C. 30 pounds. D. 40 pounds.
2.When will the Teenage Drawing Competition be held?
A. On June 7th. B. On August 6th. C. On September 20th. D. On April 25th.
3. Where can you watch Adele's performance this Sunday afternoon?
A. At St. James' s Park. B. At Westfield Theater.
C. At Westfield Shopping Center. D. At Cambridge Theater.
下列属于动态陈列的是()
A、花瓶
B、书画
C、根雕
D、服装表演