单项选择题
匹配book、food、good这三个单词的正则表达式,以下正则编写正确的有()
A.AB.BC.CD.D
A.lB.HeloC.HelaoooD.lhw
A.1000B.99$C.199.99$D.256$
A.["m","m"]B.["m","m","m"]C.["me","monn"]D.["me","tom","monn"]
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