Asweallknow,Jackisexperienced____

发布时间：2020-07-11 07:02:27

As we all know, Jack is experienced ______ the problem of this kind.













A.to work out












B.at working











C.at working out











D.for working out

网友回答

A解析考查短语be experienced at在某方面有经验。At是介词后面接名词或者动名词。句意：众所周知，杰克在解决这方面的的难题上有经验。Work out解决，算出，故选A。
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