【C3】A．puzzlesB．mysteriesC．marvelsD．studies

【C20】A．study wellB．studying wellC．study goodD．studying good

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How did the researchers carry out their study？A．They studied the findings of several previ

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材料题请点击右侧查看材料问题 查看材料A.puzzlesB.problem

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【C3】A．performedB．behavedC．workedD．studied

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If a study focuses on Shakespearean language, it is a______ study.A．diachronicB．synchronic

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normative study和descriptive study的关系是（)。A.can implies oughtB.规范从事实中来C.事实从

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[A] studying [B] studied [C] to study [D] having studied

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