By dint of much practice he became ______ and was able to sign his name with either hand.
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By dint of much practice, he became ______ and was able to sign his name with either hand.
A.practical
B.tricky
C.ambiguous
D.ambidextrous
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正确答案:D
解析:(ambidextrous双手灵活的)。句意为:通过大量的练习,他的双手都很灵活,能用双手签名。A.practical实际的;B.tricky奸诈的;C.ambiguous模棱两可的。
