Type B：Type B people get along well with others because they are straightforward, and are noted for their creativity. But type B people are also moody and become bored and annoyed easily.

　　Type O：Type O people are stubborn and impulsive. Their redeeming quality is that they are loyal to their friends.

　　Type AB ：Type AB people are indecisive and picky. They tend to be demanding and impatient, and they have trouble seeing things through.

　　Despite any real evidence to support these ideas, Takeji's theory quickly caught on. By 1930, standard job application forms included a blank for blood type, and today market researchers use it to predict buying habits, and ordinary people use it to choose friends and romantic partners.

　　［参考译文］

　　A型的人保守、被动，在意外表。 A型的人虽然肤浅、精神有点不稳定，但他们很有耐性，而且会坚持把他们开始的工作做完。

　　B型的人和别人处得好，因为他们很直率，并以他们的创意闻名。但是B型的人也很情绪化，很容易觉得无聊、觉得烦。

　　O型的人顽固、冲动。作为补偿的气质，是对他们的朋友很忠诚。

　　AB型的人犹豫不决、爱挑剔。他们比较苛求、没耐性，他们没办法坚持到底。

　　不管有没有任何支持这些想法的实证，竹二的理论很快流行起来。到了1930年，标准的工作申请表已经包括了填写血型的空格，现在的市场调查员用这种方法来预测购买习惯，普通人则用它来选择朋友和情人。

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