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  3. News 1 Yuan Longping, the father of hybrid rice, won the World Food Prize on Monday. Yuan developed the world’s first popula

News 1 Yuan Longping, the father of hybrid rice, won the World Food Prize on Monday. Yuan developed the world’s first popula

admin2015-07-20  1
问题     News 1
    Yuan Longping, the father of hybrid rice, won the World Food Prize on Monday. Yuan developed the world’s first popular and widely known hybrid rice. Hybrid rice plants can make more rice than regular ones.
    News 2
    Have you ever got angry at books that are full of mistakes? Don’t worry, things will get better soon. Last week, China started checking textbooks, dictionaries and children’s books all over the country. The government said the results of the check would come out at the end of June.
    News 3
    Have you ever thought of being able to fly around the world in a few hours? One day, maybe you can. Last Saturday, the American X-43A airplane made its first flight. It reached a speed of 8,000 kilometers per hour. This makes it the fastest plane in the world. X-43A is only three to four meters long, but it’s very heavy. It weighs 1,270 kilograms.
The speed of the fastest plane in the world is______.
选项 A、1.4 kilometers per second
B、43 kilometers per minute
C、1,270 kilometers per hour
D、8 ,000 kilometers per hour
答案D
解析 由News 3“It reached a speed of 8，000 kilometers per hour．This makes it the fastest planein the world”可知。
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