According to the different effects of the ability compensation method on the overall effect of the ability system, the mutual compensation methods between the ability can be divided into two types: unbalanced compensation and balanced compensation. Unbalanced compensation refers to the use of superior capabilities to compensate for weak capabilities, thereby strengthening The way of overall ability. Balanced compensation refers to the way to strengthen the overall ability by improving the weak ability. According to the above definitions, which of the following is the non-equilibrium compensation in the following items? ['When Xiao Zhang just came to the auto repair factory, he only had a slight understanding of the engine repair technology. Later, under the leadership of the master, he studied hard and finally mastered this technology.', 'Wang Ming and several classmates formed a band. In order to cultivate mutual understanding and better cooperation, they often rehearse in their spare time.', 'Xiaoli often browses entertainment news online. Over time, she knows all kinds of entertainment news.', 'The No.5 athlete of the volleyball team is characterized by the strong offense and blocking, but defense is weak, and the pass is weak. The coach arranges it to defend in the first position.']