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            • 1．

              The professor has d       (发表）two speeches at the school hall up to now.

              难度：中等
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            • 2．

              The new technology has been a        （应用）to medical examination.

              难度：中等
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            • 3．
              A variety of government programs have ___________（使受益）the children in that area. Now they can go to school.
              难度：中等
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            • 4．
              I feel very happy to see my mother has now fully r________ from her lung disease.
              难度：中等
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            • 5．
              I’m sorry you’ve _____（拨电话)a wrong number ,so you couldn’t  get through.
              难度：中等
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