考古证据开始指向一个横跨(英吉利)海峡的青铜时代聚落,它是被大海连接的,而不是被大海分开。
Archaeological evidence was beginning to suggest a Bronze-Age community straddling the Channel, brought together by the sea, rather than separated by it.
在那个简单的时代,这就是有力的证据。
由于这些优点,可以通过辐射测量方法以足够确定沉积证据的年代,从而建立一个精确的冰河时代年表。
Because of these advantages, sedimentary evidence can be dated with sufficient accuracy by radiometric methods to establish a precise chronology of the ice ages.
No, and there's several demonstrations at the time of Skinner suggesting that they don't.
答案是否定的,早在斯金纳的时代就已经有证据表明,动物无需强化与惩罚也能进行学习。
应用推荐