A.Most Londoners were frightened.B.Most Londoners became rather confused.C.Most London

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A.Most Londoners were frightened.

B.Most Londoners became rather confused.

C.Most Londoners took Exercise Flood Call calmly.

D.Most Londoners complained about the trouble caused by Exercise Flood Call.

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗