Such a database would be extremely costly to set up.

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问题 Such a database would be extremely costly to set up.

选项 A、transfer
B、destroy
C、establish
D、update

答案C

解析句意为：建立这样的数据库成本会非常高。set up“建立”，四个选项：transfer“转移”；destroy“破坏”；establish“建立”；update“更新”。

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职称英语理工类B级

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