Tu Youyou，William Campbell and Satoshi Omura are three scientists from different countries．They have won the 2015Nobel Prize in medicine．

On December 30.1930．Tu Youyou was bom in Ningbo，Zhejiang，China．From 1951to 1955，she studied in Peking University Medical School．Later Tu was trained for two and a half years in traditional Chinese medicine．

Sweet wormwood （青蒿） is a common plant in China．But it has the power to cure the deadly disease called malaria （疟疾）．Tu started her malaria research in China in the 1960s、and 1970s．She discovered"Qing﹣hao﹣su"in 1971．It is a great health improvement（改进）for people in developing countries in south Asia，Africa，and South America．

Tu got several medicine awards（奖项）in the past．On October 5，2015，she was awarded the 2015Nobel Prize in Physiology（生理学）or Medicine．She is the first Chinese scientist to win a Nobel Prize．

52．Who won the 2015Nobel Prize in medicine？　　

A．Tu Youyou．

B．William Campbell and Satoshi Omura．

C．Both A and B．

53．Where was Tu Youyou born？　　

A．Ningbo．

B．Hangzhou．

C．Shaoxing．

54．The underline word"cure"in the passage means．　　

A．治疗

B．治理

C．诊断

55．Which of the following is true according to the passage？　　

A．Tu Youyou is 81years old．

B．"Qing﹣hao﹣su"is useful in people's health．

C．Tu studied in Peking University for two and a half years．