Question

Wilhelm Conrad Roentgen was ________ first Nobel Prize Winner in ________ physics and his work started ________ series of revolutionary discoveries during the last 100 years.

1. A.
   the; 不填; a
2. B.
   the; the; 不填
3. C.
   a; the; a
4. D.
   不填; a ;不填

Answer 1

A
序数词前面要用定冠词，抽象名词前不要冠词，a series of是固定词组。