题目

机器人是一种特殊的计算机，有运算控制、输出、输入、电源等类似于计算机的部件。其中为机器人提供“能量”的是（ ）。 A . 传感器 B . 主板 C . 驱动系统 D . 电源 答案：DAnswer the questions (根据短文内容完整回答下列问题)：Editor’s note: Nowadays, thanks to the Internet, taking online classes is becoming more and more popular. Some people say that they are a convenient way to study. While others worry that students may get distracted (分心的) by the Internet. What's your view on online education?Online classrooms are helpful and useful. We may put our heart into learning when we are alone in front of a computer with no one to distract us. In addition, taking courses online also means we may have more time to operate a compute which is a good way to practice our computer skills.Jack, 15I love taking online courses. They give me a lot more choices and freedom. We can choose to learn whatever we exactly need and even preview the lesson we'll learn in classrooms. Also. Online classes enable people to study whenever and wherever they want, which is very convenient.Julia, 16I don't think online education is a good way to study. There are many bad or wrong things you know on the Internet, which may distract students from the courses they are taking. Also, unlike students who study in the classroom, students taking online courses have no one to tell them where they are in the whole learning process.Ben, 16I think the idea of taking online courses is crazy. It may increase our exposure(暴露) to computers, and the radiation(辐射) from them may do harm to the human body and lead to our eyesight getting worse. Also, looking straight at a computer for along time without exercising could be harmful to our health.1.Some people think talking online classes is convenient, don’t they?__________________________________________________________________2.Why does online learning make it easier to put our heart into learning?__________________________________________________________________3.Jack thinks online classes give him freedom. What example does he give to explain his view?__________________________________________________________________4.Why doesn't Julia think online education is a good way to study?__________________________________________________________________5.Ben and Julia are against online education for similar reasons, aren't they?__________________________________________________________________6.Do you think taking online courses is good or bad for us? Please give your reasons.__________________________________________________________________