题目内容
.(2010·湖南岳阳一中高三第二次月考)34. A survey _______ in 2002 by the Computer Security Institute, a private organization in the USA, showed that 90 percent of the 503 biggest companies and government departments questioned _______ their security systems _______ into in the previous year.
A. conducted ; had ; broke
B. conducted; had had ; broken
C. was conducted ; had had ; broken
D. to be conducted; had ; broke
B
练习册系列答案
相关题目