Dozens of scientific groups all over the world have been______the goal of a practical and economic way to use sunlight to split

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问题 Dozens of scientific groups all 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 pursue追求，寻求，与goal搭配。B．chase追逐，追赶；C．reach达到；D．win赢得。

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