日本在六十年代后期超越了（）成为世界上的第二大经济实体。

正确答案：B
交子是中国历史上最早出现的纸币，出现在北宋真宗景德年间的四川地区，当时的金、银等货币过于沉重，而四川的成都为繁华的商业性城市，货币的需求量因商业的发展而增加，于是，16家经济势力雄厚的成都富商联合发行了交子。它主要免除了人们特别是商人肩挑车载铁钱到处奔波之苦，便利了商品的交换。故本题选B。

参考答案：错误

参考答案：B

正确答案：A

参考答案：China is one of the oldest civilizations in the world.Many elements that make up the foundation of the modern world originated in China.China now is the world's fastest growing economy, and is experiencing a new industrial revolution.China has also launched an ambitious space exploration program which includes a space station in 2020.At present, China is the world's largest exporter, and is attracting a lot of foreign investment.At the same time, it is also investing billions of dollars abroad.In 2011, China overtook Japan to become the world's second largest economy.

答案：B

答案：正确

答案：C

解析：