衍生金融工具中的期权可分为（）。
A.日式期权
B.美式期权
C.欧式期权
D.澳式期权
E.中式期权
参考答案：B, C
论述日本大化改新的背景、内容和意义。
Can you tell me_______?
A．how many star signs is a year divided into
B．how far is it from Shanghai to Beijing
C．what color to wear when I feel blue
D．to choose which one
