析：推理判断题。由“... produced a 20 percent higher yield than common types of rice.〞以及“And the country’s total rice production has greatly increased.〞可知答案为C。Р答案：CР3．Which of the following is NOT true according to the passage?РA．Every scientist has a childhood dream of his or her future.РB．Chinese people led a hard life in the 1960s.РC．Yuan Longping believes that rice quality is more important than its quantity.РD．Yuan Longping looks like an ordinary farmer in his daily life.Р解析：事实判断题。由“If you ask him whether rice quality or quantity should come first，his answer is always the latter.〞一句可知C项与文章内容不符。Р答案：CР4．What would be the best title for the passage?РA．A famous scientist B．Hybrid rice and super riceРC．Father of hybrid rice D．Yuan Longping’s riceР解析：标题概括题。A项太一般化了，不能引人注目。B、D两项没有紧扣主题。Р答案：C
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