认为迁移产生的实质是个体对事物间关系的理解的理论是（）。 形式训练说。 关系转换说。 共同要素说。 经验类化说。
简述气象为农服务“两个体系”的内涵及其主要任务。
As Christmas is coming, there are presents to be bought, cards to be sent, and rooms to be cleaned. Parents are ___1___ with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real ___2___. On Christmas Eve, young children find the excitement almost unbearable. They are torn between the wish to go to bed early so that Father Christmas will bring their presents quickly and the wish to stay up late so that they will not miss the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie awake for a long time, hoping to get a short ___3___ at Father Christmas.
Last Christmas, my wife and I successfully hid a few large presents in the storeroom. I ___4___ the moment when my son, Jimmy, would ask me where that new bike had come from, but ___5___ he did not see it.
On Christmas Eve, it took the children hours to go to sleep. It must have been nearly ___6___ when my wife and I went quietly into their room and began filling stockings. Then I pushed in the ___7___ I bought for Jimmy and left it beside the Christmas tree. We knew we would not get much sleep that night, for the children were ___8___ to get up early. At about five o’clock the next morning, we were woken by loud sounds coming from the children’s room — they were shouting excitedly! Before I had time to get out of bed, young Jimmy came riding into the room on his new bike, and his sister, Mary, followed close behind pushing her new baby carriage. Even the baby arrived. He moved ___9___ the hands and knees into the room dragging a large balloon behind him. Suddenly it burst. That woke us up ___10___. The day had really begun with a band!
___8___内应选（） bike。 midnight。 fortunately。 look。 problem。 faced。 sure。 on。 feared。 tiny。 completely。 lick。
在知识的学习过程中，掌握同类事物的共同的关键特征和本质特征属于（）。 概念学习。 意义学习。 命题学习。 符号学习。
原生动物中最大的类群是（）。 利什曼原虫。 锥虫。 毛滴虫。 孢子虫。
资本积累的实质是（）
