（）会对电网频率产生影响，严重时造成系统频率崩溃。A.风功率随机波动 B.风机不具备

way , everything,  eat ,  listen,  much,  do ,  try,  more , fruit ,  knowledge,  always , read

Food is very important. Everyone needs to __1__ well if he or she wants to have a strong body(身体). Our brains (大脑) also need a kind of food. This kind of food is __2__. We begin to get knowledge (知识) When we are very young. Small children are interested in everything around them. They learn _3__ while (当) they are watching and _4__. When they are getting older, they begin to __5__ storybooks, anything they like. When they find something new, they like to ask questions and _6__ to find out the answer.
What is the best _7__ to get knowledge? If we _8__ by ourselves, we’ll get the most knowledge. If we’re __9__ getting answers from others and do not ask why, we will never learn well. When we study in a right way, we will learn _10__ and understand (理解) better.