A-A+
What is this news item mainly about？A．Politica
问题详情
What is this news item mainly about？
A．Political protests during the Olympics.
B．Security operations during the Olympics.
C．Olympics" security forces.
D．Security measures in buildings.
参考答案
正确答案：B
解析：概括题。这则新闻主要围绕着加拿大首都渥太华2010年为举行冬奥而进行的各种安全防范措施。
