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        1. 【題目】Sam is doing some___________ on the ancient Silk Road.

          A.operationsB.experimentsC.research

          【答案】C

          【解析】

          句意:薩姆正在做一些關(guān)于古代“絲綢之路”的研究。

          考查名詞詞義辨析。operations操作,experiments實(shí)驗(yàn),research研究!肮糯z綢之路’”屬于“研究”的對(duì)象而不是“操作”或“實(shí)驗(yàn)”的對(duì)象。故選C。

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