题目

In all the world’s cultures, people sing, play instruments, and celebrate with music. It plays such an important role in our lives that people devote much time to its study. Experts (专家) are finding that because of the _______our brains deal with music, learning to play an instrument or just listening to music can have a large number of benefits (益处).Music education has _______a lot of attention. Learning to play an instrument can help children improve Maths, science, and language _______. One study in Canada followed children’s IQ scores for nine months, _______that children who s浸在液体中的物体所受的浮力大小等于它排开的液体所受的　　　　。一个60g的鸡蛋，它受到的重力大小为________。当它放在盛有水的容器中会下沉，向水中慢慢加盐并轻轻搅拌，鸡蛋会上浮并静止在液面上。这一现象说明浮力的大小与　　　　　有关。