Last month, part of Southeast Asia was struck by floods, from effects some people are sti

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A. that
(答案→)B. whose
C. what
D. those
解析：    
试题分析:考查定语从句。由结构可知此处是定语从句，排除C、D选项。而先行词floods和effects之间有所属关系，属于whose+名词引导的定语从句，故答案选B。句意：在上个月，东南亚的部分地区受到了洪水的侵袭，很多人仍然遭受着它的影响。