数据独立性分为逻辑独立性和物理独立性。当总体逻辑结构改变时,其局部逻辑结构可以不变,

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问题:

数据独立性分为逻辑独立性和物理独立性。当总体逻辑结构改变时,其局部逻辑结构可以不变,从而根据局部逻辑结构编写的应用程序不必修改,称为______。

考点:计算机等级考试VISUALFOXPRO二级VISUALFOXPRO真题2012年09月
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Our world natural park is one of the most famous parks in the world. Millions of visitors from different countries visit this park every year. In order to protect it,please do as follows:

◆Protect the natural and cultural heritage. Don’t damage or deface any buildings,dis-plays and other facilities. Take care of all plants. Put rubbish in the bins provided.

◆Take care when you are going up and down steps or stairs and when you are walking nearby the waters.

◆Please buy tickets before entering the scenic spot. One ticket is only for one person. A-dult:$60 per ticket. Children over 6 and under 18,half price. People over 60 and children un-der 6 are free.

◆If you are going into the wooded and hilly lands,for your own safety,please go with three people at least and don't take any tinder(易燃物)along with you. The hill is steep, so please take care of yourself.

◆This scenic spot is the reserve of water source: No fishing,swimming,washing and any behaviors that are harmful to the water source. Meanwhile,please follow the management rules of the scenic spot conscientiously.

◆Opening time:From Monday to Friday,8:00 a. m.~18:00 p. m.;From Saturday to Sunday,6:00 a. m:一24:00 p. m.

◆Small animals such as rabbits,peacocks,squirrels,frogs must be taken care of: None of them shall be killed.

If you have any trouble in visiting our world natural park,please call 477一866一7044.Our staff will do our best to help you.

小题1:How much will be paid for a 65-year-old man with his 8-year-old grandson?

A.Free.

B.$30.

C.$60.

D.$120.小题2:On weekends,the opening time is_hours longer than weekdays.

A.4

B.6

C.8

D.10小题3:From the passage,we can infer that the water in this park is_.

A.clean

B.polluted

C.dangerous

D.colorful小题4:Which of the following is TRUE according to the passage?

A.Tourists can hike alone in the hilly lands.

B.Small animals are under protection in the park.

C.Children can play with small animals.

D.Tourists can have a swim in the water.

题型:填空题

浅层地下水含水层的位置是在地球的()

A.地表

B.第一个不透水层以上

C.第一个不透水层以下

D.与泉水同一个含水质

E.位于溶洞内

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人们在商务活动中要遵循的礼节,是一种约定俗成的行为规范,是商务活动中对人的仪容仪表和言谈举止的普遍要求。这是()的定义。

A.宴会礼仪

B.商务礼仪

C.西餐礼仪

D.舞会礼仪

题型:填空题

“雨巷”的象征意义是()

A、坎坷而迷茫的人生道路

B、高洁而幽怨的美好理想

C、环境遭际的不幸与凄苦

D、迷茫凄苦中的探索寻求

题型:填空题

社(银)团贷款,是指由()具有法人资格、经营贷款业务的农村合作金融机构(银行),采用()贷款合同,共同向()借款人发放的贷款。

A.两家及两家以上、同一、同一

B.两家及两家以上、不同、同一

C.两家及两家以上、不同、不同

D.同一家、同一、不同

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