单选题:金融期货的主要品种可以分为(  )。I.股指期货II.金属期货III.利率期货IV.外汇期货

题目内容:

金融期货的主要品种可以分为(  )。
I.股指期货
II.金属期货
III.利率期货
IV.外汇期货 A.I、II、III、IV
B.I、III、IV
C.III、IV
D.I、II

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