问题
单项选择题
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.
A．pursuing
B．chasing
C．reaching
D．winning
答案
参考答案：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。
