一道英语题The officials said the downward trend of the H1N1 flu activity did not__mean the worst...

题目

一道英语题The officials said the downward trend of the H1N1 flu activity did not__mean the worst...
一道英语题The officials said the downward trend of the H1N1 flu activity did not__mean the worst was over.Flu activity might pick up next year.
A.greatly B.necessarily C.fully D.nearly 为什么选B?

答案

B.necessarily
ad.1.必定;必然地
语句最通顺
官方说：H1N1流感的下降趋势不一定意味着最糟糕的情况已经过去.明年或许会卷土重来