The world’s population hit 7 billion on Monday among celebrations and concerns about _______ the growing number of people will affect the earth’s resources.
The world’s population hit 7 billion on Monday among celebrations and concerns about _______ the growing number of people will affect the earth’s resources.
A、why
B、how
C、whether
D、what
【正确答案】：B
【题目解析】：考查连词辨析。分析句子可知空格处引导宾语从句，从句已为完整句子，考虑连接副词，根据句意应选B。句意：在各种仪式中，世界人口在星期一达到了七十亿，也引起了人们对日益增长的人口究竟会如何影响地球的资源这一问题的关注。
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