问题如下：
List six differences between futures and forwards.
选项：
解释：
Futures are available on a much wider range of assets than forwards. Futures are traded on an exchange, whereas forwards are traded OTC. Futures are standardized by the exchange, while forwards can be non-standard. Forwards have a single delivery date, whereas futures usually have a range of delivery dates. Futures are settled daily, whereas forwards are settled at the end of their life. Forwards are usually held to maturity, whereas futures are usually closed out before maturity. In the case of futures, credit risk is very low because the exchange requires initial and variation margin. Credit risk may be higher in the case of forwards.
答案中第一个说的是期货的资产范围比远期广的多，好像不对吧。远期要广？
