什么是数据挖掘？数据挖掘有哪些应用？

根据短文内容，按要求答题。

Dear Helen,

     This has already been a great trip and I haven't even left the airport yet! Even leaving Shanghai was

exciting. We went to Pudong (浦东) International Airport on the new super fast train. It travels at four

hundred and thirty kilometers per hour! Before the train line was built, it took a long time to get to the

airport by taxi or bus.

     We have quite a long time to wait here in Hong Kong before we fly to London tomorrow. In the old

Hong Kong airport only had a few small televisions, but the new airport has lots of super sized televisions

showing sport, comedy (喜剧) and music shows. The old airport only had a few shops selling newspapers

and books, but the new airport has shops selling all sorts of different things. The new airport hotel offers

many special service-including a foot massage (按摩) service! Dad said we can go there later to relax

(放松).

      There weren't many restaurants in the old airport, but it's hard to decide which restaurant to go to

in the new airport. There are so many different ones with food from all over the world. I left my bag in

a restaurant and I thought I lost it, but it was safe in the lost and found (失物招领处) house.

      The airport has a bus that can take you for a quick sightseeing and shopping tour of the city. I hope

you are well!

     See you soon!

1. How far does the new super fast train travel per hour?

___________________________________________________________

2. Where will the writer go tomorrow?

___________________________________________________________

3. The old Hong Kong airport had lots of super sized televisions, didn't it?

___________________________________________________________

4. Where did the writer find his bag?

___________________________________________________________

5. How can they go sightseeing and shopping?

___________________________________________________________

对质量体系的总要求可以归纳为（）

A.写你所做的（应该做到的事情一定要写成文件）

B.做你所写的（写入文件的内容一定要做到）

C.记你所做的（做到的事情一定要有记录）

D.以上都对

绕三灵，即祭拜佛、道、巫神灵。( )

水利工程基本建设项目竣工时，应当编制（）。

A.竣工财务概算

B.竣工财务预算

C.竣工财务决算

D.竣工财务估算

生产经营单位读从业人员进行岗位练兵应按照“四懂三会”的要求进行，其中“三会”是指（）

A、会操作

B、会设备原理

C、会维修保养

D、会排除故障

E、会工艺流程