39. To commemorate the French female physicist and radiochemist, the unit of radioactivity is named $\qquad$ -
A. Lovelace
B. Evans
C. Curie
D. Goeppert Mayer
【Answer】C
【Analysis】Marie Curie (November 7, 1867 – July 4, 1934), known as Madame Curie, was a Polish-French physicist and radiochemist. In 1898, she and her husband Pierre discovered radium (Ra), element 88, and polonium (Po), element 84. In 1903, she and her husband Pierre Curie, along with Henri Becquerel, were awarded the Nobel Prize in Physics. In 1911, she received the Nobel Prize in Chemistry for her achievements in the isolation of radium and polonium and her work in radiochemistry. Marie Curie was the first female scientist to win a Nobel Prize in science and the first scientist to win two Nobel Prizes. Marie Curie was a pioneer in the study of radioactivity and conducted extensive research on radioactive isotopes, and she was the first to apply radioactive isotopes to cancer treatment. At the time, she made the decision not to patent the methods for processing radium or its medical applications.