Dozens of scientific groups ail over the world have been ______ the goal of a pr

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问题 Dozens of scientific groups ail over the world have been ______ the goal of a practical and economic way to use sunlight to split water molecules.

选项 A、pursuing
B、chasing
C、reaching
D、winning

答案 A

解析动词辨析。pursue意为“追赶、继续、从事”；chase意为“追赶、追逐”；reach意为“达到、延伸”；win意为“获胜、赢得”。pursue the goal of…意为“追求……的目标”，故答案为A。

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