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            • 1．
              It is reported that people are ______ likely to tell lies over the phone as they are in emails．（　　）
              A．as twice
              B．twice than
              C．twice more
              D．twice as
              难度：中等
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            • 2． As western countries encourage fertility (生育),the world’s population has grown by _________in 1800.

                    

              A．three times it was
              B．three times what it was

                 

              C．what it was three times
              D．it was three times
              难度：中等
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            • 3． My glasses cost me _____ the last pair I bought.
              A．. three times
              B．three times as much as
              C．three times more as
              D．three times as many as
              难度：中等
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            • 4．

              We have to feed more people now because the world’s population has grown by six times ____________ it was in 1800.

              A．what
              B．that
              C．which
              D．how
              难度：中等
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            • 5．

              Since the new technique was introduced, the factory has produced _______ cars as the year before.    

              A．as twice many
              B．as many as
              C．as twice as many
              D．twice as many
              难度：中等
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            • 6．

              The new stadium being built for the next Asian Games will be _______ the present one.

              A．three times as big as
              B．as three times big as
              C．as big as three times
              D．as big three times as
              难度：中等
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            • 7．

              At present       of the experiments       done in labs after the new building has been finished.           

              A．four fifth; is
              B．four fifths; are
              C．four fifth; are
              D．four fifths; is
              难度：中等
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            • 8． Paper produced every year is ________ the world’s production of vehicles.(     )

                 

              A．three times the weight of
              B．the three times weight of

                 

              C．as three times heavy as
              D．three times as heavier
              难度：中等
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            • 9． Huai’an has developed into a second-tier city, which is ________ it used to be.
              A．three times larger than that
              B．three times the size of what
              C．three times the size larger than what
              D．as three times the size as that
              难度：中等
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            • 10． _________of the people died or were in­jured during the earthquake.
              A．Two—third
              B．Two—thirds
              C．Two—Three
              D．Third
              难度：中等
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