题目内容
In a telephone survey of more than 2,000 adults, 21% said they believed the sun revolved (旋转) around the earth. An (1)7% did not know which revolved around (2) I have no doubt that (3) all of these people were (4) in school that the earth revolves around the sun; (5) may even have written it (6)a teat. But they never (7) their incorrect mental models of planetary (行星的) (8) because their everyday observations didn’t support (9) their teachers told them: people see the sun "moving (10) the sky as momin8 turns to night, and the earth seems stationary (静止的) (11) that is happening.Students can leant the right answers (12) heart in class, and yet never combined them (13) their working models of the world. The objectively correct answer the professor accepts and the (14) personal understanding of the world can (15) side by side, each unaffected by the other.Outside of class, the student continues to use the (16) model because it has always worked well (17) that circumstance. Unless professors address (18) errors in students’ personal models of the world, students are not (19) to replace them with the (20) one. 18（）
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Since nobody gave him any help, he have done the research on his own.（）
A Doctor are known to be terrible pilots. They don’t listen because they already know it all. I was lucky: ] became a pilot in 1970, almost ten years before I graduated from medical school. I didn’t realize then, but becoming a pilot makes me a better surgeon. I loved flying. As I flew bigger, faster planes, and in worse weather. I learned about crew resource management (机组资源管理), or CRM, a new idea to make flying safer. It means that crew members should listen and speak up for a good result, regardless of positions. I first read about CRM in 1980. Not long after that, an attending doctor and I were flying in bad weather. The controller had us turn too late to get our landing ready. The attending doctor was flying; I was safety pilot He was so busy because of the bad turn, he had forgotten to put the landing gear (起落架) down. He was a better pilot - and my boss - so it felt unusual to speak up. But I had to: Our lives were in danger. I put aside my uneasiness and said, "We need to put the landing gear down now!" That was my first real lesson in the power of CRM, and I’ve used it in the operating room ever since. CRM requires that the pilot/surgeon encourage others to speak up. It further requires that when opinions are from the opposite, the doctor doesn’t overreact, which might prevent fellow doctors from voicing opinions again. So when I’m in the operating room, I ask for ideas and help from others. Sometimes they’re not willing to speak up. But I hope that if I continue to encourage them , someday someone will keep me from ” landing gear up”. Which of the following can be the best title for the text（）.
Which car was badly damaged（）
飞达公司现有车床25台，已知单台机床的全年有效台时为4,500小时，按计划生产任务计算的机床负荷系数为1.10。 要求： 计算机床预测定额总台时；
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