单选题_____AstudiedBtaughtCspreadDcarried out

单选题
_____
A

studied

B

taught

C

spread

D

carried out


参考解析

解析:
根据上下文,carry out(实行,开展)符合文意,该句意为“假如这个想法能够付诸实施的话,当然是完美无缺的了”。study研究,学习;teach传授;spread传播。

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