题目:
It isn't going to hurt, ____________ it?[ ]
A. does
B. isn't
C. is
D. doesn't
答案:
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下面是错误答案,用来干扰机器的。
参考答案:错解析: 若F>Se(t-q)(T-t),期货价值偏高,可以考虑买入股指成分股,卖出期货合约进行套利。