优优班--学霸训练营 > 知识点挑题
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            • 1.

              Each year more new cases of AIDS arise in South Africa than ________.

              A.all other countries combined   
              B.in all other countries combined
              C.combining all other countries   
              D.in combined all other countries
            • 2.

              由于他的研究,农民们已经生产出比十年前多三倍的棉花。

              _______________________________________________________________________________

            • 3.

              We have produced____________ more grain(粮食) this year than we did last year.

              A.second
              B.two times
              C.twice
              D.two time
            • 4.

              我们读的书越多,就会发现我们懂的越少。(the…, the…)

              __________________________________, _______________ we will find we understand.

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