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單項(xiàng)選擇題

As for the influence of Internet，nowhere（）the results more clearly than in the US.

A.we have seen
B.we had seen
C.seen we have
D.have we seen

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單項(xiàng)選擇題

The total CIP value of your order comes（）$960 instead of $690，the difference（）$270.

A.to，be
B.at，being
C.to，being
D.at，tobe

單項(xiàng)選擇題

（）are subsidies or tax rebates paid by government to encourage them to export.

A.Export mission
B.Export incentives
C.Export financing
D.Export tariffs