阅读理解。阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。
Most people know that Marie Curie was the first woman to win the Nobel Prize, and the first person to win it twice. However, few people know that she was also the mother of a Nobel Prize winner.
Born in September, 1897, Irene Curie was the first of the Curies' two daughters. Along with nine other children whose parents were also famous scholars, Irene studied in their own school, and he
r mother was one of the teachers. She finished her high school education at the College of Sévigné in Paris.
Irene entered the University of Paris in 1914 to prepare for a degree in mathematics and physics. When World War I began, Irene went to help her mother, who was using Xray facilities(设备) to help save the lives of wounded soldiers.Irene continued the work by developing Xray facilities in military hospitals in France and Belgium. Her services were recognised in the form of a Military' Medal by the French government.
In 1918, Irene became her mother's assistant at the Curie Institute. In December 1924, Frederic Joliot joined the Institute, and Irene taught him the techniques required for his work. They soon fell in love and were married in 1926. Their daughter Helene was born in 1927 and their son Pierre five years later.
Like her mother, Irene combined family and career. Like her mother, Irene was awarded a Nobel Prize, along with her husband, in 1935. Unfortunately, also like her mother, she developed leukemia because of her work with radioactivity(辐射能). Irene JoliotCurie died from leukemia on March 17, 1956.
本文是一篇人物介绍。介绍居里夫人大女儿Irene Curie的一生。
1．Why was Irene Curie awarded a Military Medal?
A．Because she received a degree in mathematics.
B．Because she contributed to saving the wounded.
C．Because she won the Nobel Prize with Frederic.
D．Because she worked as a helper to her mother.
答案：B。细节理解题。根据文章第三段可知，第一次世界大战开始后，Irene帮助母亲救助伤员，法国政府以军功章的形式表示对她的贡献的认可。所以选择B项。
