公共英语五级

单选题What is the basic difference between the two classes of theories?

参考答案:B进入在线模考
由第一段最后一句“However,basically,evolutionary theories take it that…has been expanding ever since.”可知,两种理论的根本区别在于对“宇宙是否会继续膨胀?”这一问题的不同看法。