下图反映了发达国家和发展中国家人们的生活情况，对于其中的差异产生的原因的叙述，正确的是（ ）
A．发展中国家和发达国家产生经济差异的主要原因是智力方面的区别
B．发达国家比发展中国家经济发展水平高，是因为人种方面的优势
C．发展中国家在历史上曾经长期受发达国家的侵略和剥削，是导致发展中国家经济水平低的重要因素
D．发展中国家不可能最终赶上发达国家
答案：C
本题考查地域发展差异。发展中国家和发达国家的人们在智力方面是没有明显差别的；发达国家输出的是工业制成品，发展中国家输出的多是农矿产品，在产品交换中处于不利地位，与人种没有直接关系；历史原因是现在发展中国家贫穷落后的重要原因；发展中国家通过自己的努力，能够赶上甚至超过现在的发达国家。
When Roy was four years old, his father ___1____ in an accident, leaving his mother and him. After Roy left high school, he wanted __2_____ to a good college(大学) in his hometown. But his mother would pay ___3___ money for his college education. I’ll try to do something for you as soon as you pass the entrance exam (入学考试),” said his mother. Roy took the exam. As a result, he could enter the college ___4___ he didn’t get high scores. His mother was very excited, but she knew quite a lot of money would be needed. The next day, she sold her car and asked her boss ____5__ another four hours’ work every day. She even had two jobs, one during the day and ___6___ at night. She had to walk to work and work for twelve hours a day, seven days a week, but she didn’t ___7_____. She thought her son’s education was worth (值得) so much. A term passed. Roy took his first exam after entering the college. When the results were told, Roy ran home to _8___ his mother the news. “Mum”, he said , “I’ve got my exam results. You must be very ___9____.” “ You mean you’ve passed?” She asked happily. “No. I haven’t. You can get your car back and stop ___10____ like that from now on.”
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