Dozens of scientific groups all over the world have been ______ the goal of a practical and economic way to use sunlight to spli

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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 A项pursuing意为“追求,寻求”,与goal搭配;B项chasing意为“追逐,追赶”;C项reaching意为“达到”;D项winning意为“赢得”。
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