从20世纪70年代开始，经济学家就已经发现，经济增长并不必然带来满意度。总体说，有钱人比穷人幸福，一个贫民窟的穷人突然变成中产了，他会非常幸福；但在达到一定水平之后，金钱对幸福的影响程度会越来越小。因为当一个人的收入增加时，他们对于“多少收入才算幸福”的期望值也在同步增加。而且，一个人越是看重钱在个人幸福中的作用，就越不满意，因为这时相对收入比绝对收入更重要，永远有比你更有钱的人。 作者通过文段想要告诉读者的是()。

A、Third party logistics (3PL）

B、Retailer-supplier partnerships (RSP)

C、Distributor integration（DI）

D、Change Data Capture（CDC）

A. Enter the password.

B. Modify the delete time to 3 hours.

C. Set the interface to local, remote or both.

D. Increase the snap length of the Packet Capture configuration.

E. Set the Packet Capture size to greater than the actual data flow

The policeman asked him to identify the thief．

A. describe B. name C. capture D. call

2 The policeman asked him toidentify the thief．

A name B describe C capture D call

2 The policeman asked him to identify the thief.

A name B describe C capture D call

()is a trem for data sets that are so large or complex that traditional data processing applications are inadequate. Challenges include analysis, capture . data curation. Search. Sharing. Storage . transfer. Visualization . querying updating and information privacy

A.Data market

B.Data varehouse

C.Big data

D.BI

Describe techniques for extracting from heterogeneous data sources.

简述异构数据源中的数据抽取技术。

Describe techniques for extracting from heterogeneous data sources.

简述异构数据源中的数据抽取技术。