心理学家做过一个试验:将一只饥饿的鳄鱼和一些小鱼放在水族箱的两端,中间用透明的玻璃板隔开。刚开始,鳄鱼毫不犹豫地向小鱼发动进攻,它失败了,但毫不气馁;接着,它又向小鱼发动了第二次更猛烈的攻击,它又失败了,并且受了重伤;它还要攻击,第三次,第四次……多次攻击无望后,它不 Psychologists have done a test: a hungry crocodile and some fish on both ends of the aquarium, separated by a transparent glass plate. At first, the crocodile did not hesitate to attack the little fish. It failed but was not discouraged; then, it launched a second, fiercer attack on the fish, which again failed and was seriously wounded; It also attacks, the third, the fourth ... after multiple attacks are hopeless, it does not