右图是一幅反映战后美国与西欧关系的漫画。有人说：“美国的活动达到了一箭几雕的目的。”这里的“几雕”是指(    ) ①稳定了西欧经济    ②确立了美国在国际金融领域的支配地位    ③有助于美国商品的输出    ④把受援国纳入了美国全球称霸的战略轨道

Mr. Smith gave his wife money every Friday evening. His wife always spent it all the next Wednesday, so that for the next three days she had no money to spend at all. One day Mr. Smith asked her, “But how did you spend all that money?” She answered, “I don’t know.” So one Friday evening, Mr. Smith gave her money together with an exercise book and a pencil. He said to his wife, “Please write down how you spend the money.” Next Tuesday, his wife had no money again. Mr. Smith took the exercise book to see how she had spent it. “I have done what you told me,” she said gladly. She had written “Friday, I got 18 pounds from Mr. Smith.” on the first page, and on the second page, she wrote, “Tuesday, I have spent it all.”

物理兴趣小组同学对物体的浮沉条件进行研究．在一个重为4N，底面积为200cm²的圆柱形薄壁玻璃容器底部，放一个边长为10cm的正方体物块，然后逐渐向容器中倒水（水始终未溢出）．通过测量容器中水的深度h，分别计算出该物块所受到的浮力F_浮，并绘制了如图所示的图象．请解答下列问题：

①动物的行为多种多样，根据行为的____ 可以分为先天性行为和后天学习行为，____ 根据动物行为的____，又可以分为取食行为，领域行为等。
②小明傍晚带小狗出去散步，小狗沿途撒尿，这属于____ 行为，途中遇到另一只小狗，两只狗相对吼叫，这属于____ 行为。