心肌梗死最常见的部位是( )
【单选题】
在期货交易中运用一定的资金,通过预期某期货合约价格的未来走向进行买卖操作,以获得价格波动差额的投资者被称为()。
A.
套期保值者
B.
投机者
C.
个人投资者
D.
机构投资者
参考答案
参考解析
【单选题】
Which of the following statements about meaningful practice is NOT true?
Meaningful practice aims at form accuracy.
Meaningful practice focuses on the production and comprehension of meaning.
There is no clear cut between mechanical and meaningful practice.
Practice based on prompts is usually considered as meaningful practice.