单选题 Such a database would be extremely costly to set up .
【正确答案】 C
【答案解析】[解析] 题干大意:建立这样的数据库成本会非常高。set up意为“建立”,如:set up an organization(成立一个组织)。transfer意为“转移”,如:He was transferred to another department.(他被调到另一个部门了。)destroy意为“破坏”,如:The houses were destroyed in an earthquake.(房屋在地震中被毁坏。)establish意为“成立”, 最符合题意,如:His grandfather established the family business in 1920.(他的祖父在1920年成立了这个家族企业。)update意为“更新”,如:Have you updated the statistics in the report?(你更新报告中的数据了么?)