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    【题目】We can say __________ that their work is on the path of sound development.

    A. on good evidence

    B. on good proof

    C. on a good evidence

    D. on a good proof of

    【答案】 A

    【解析】proof，evidence二者都作“证据”讲，词组on( good) evidence表“依据(充分的)证据”，为固定搭配。

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