下列叙述中正确的是______。A.一个逻辑数据结构只能有一种存储结构 B.数据的逻

题型:单项选择题

问题:

下列叙述中正确的是______。

A.一个逻辑数据结构只能有一种存储结构

B.数据的逻辑结构属于线性结构,存储结构属于非线性结构

C.一个逻辑数据结构可以有多种存储结构,且各种存储结构不影响数掘处理的效率

D.一个逻辑数据结构可以有多种存储结构,且各种存储结构影响数据处理的效率

考点:计算机等级考试VISUALBASIC全国计算机等级考试二级VISUALBASIC真题2005年9月
题型:单项选择题

A well-dressed (衣着很好)man goes into a restaurant one day. He sits down at a table near the window.

A waiter comes up to him and says, “Can I help you, sir?”

The man says, “Yes, please. Can I see the menu (菜单)?”

“Certainly,” answers the waiter. The man wants a good meal and he wants a lot of nice dishes. After a moment, the waiter brings them to him. The man is having his meal happily. At this time, a boy comes in and sits down besides the man. He asks the waiter to give him an ice cream. The man says, “I will be back in 5 minutes.” Then he goes out. After the boy eats his ice cream, the boy stands up and goes to the door. “Excuse me, your father did not give the money for the meal and your ice cream,” The waiter stops him and says.

“Father? You are wrong. He is not my father. I do not know him. I met him in the street. He said he would give me an ice cream if I came here at twelve o’clock.”

小题1:The man comes to the restaurant ___________.

A.to meet the boy

B.to buy a newspaper

C.to eat an ice cream

D.to have a good meal小题2:The man has ________ in the restaurant.

A.breakfast

B.lunch

C.supper

D.dinner小题3:________ asked the boy to come to the restaurant.

A.The waiter

B.The boy’s father

C.The man

D.Nobody小题4:The waiter stops the boy because _______.

A.the man didn’t pay (付钱) for the meal and the ice cream

B.the boy didn’t have the meal

C.the boy’s father came back soon

D.the boy wanted to run away小题5:Which of the following is true?

A.The boy is the man’s son.

B.The boy knows the man very well.

C.The waiter pays the meal and the ice cream.

D.The man is a cheat (骗子).

题型:单项选择题

需要证明一种中药牙膏对牙周疾病的预防效果,实验设计中不包括

A.人群选择

B.样本含量

C.实验分组

D.空白剂选择

E.历史常规资料分析

题型:单项选择题

强心苷治疗心房纤颤的主要机制是

A.缩短心房有效不应期

B.减慢房室传导

C.抑制窦房结

D.直接抑制心房纤颤

E.延长心房不应期

题型:单项选择题

《国际金融报》报道:新塘( 位于珠江三角洲东北部) 在30 年前还只是一个名不见经传的小镇,改革开放之初,这里诞生了国内第一条牛仔裤。30 年后,这里聚集了几十万外来工,成为中国乃至世界最大的牛仔布生产基地和华南摩托车、汽配产业重要地标。每天,这里有250 万件牛仔服被生产出来销往世界各地。数据显示,尽管受国际金融危机影响,但2008 年新塘仍完成工业总产值797 亿元。据此完成3 题。

1.新塘诞生国内第一条牛仔裤时,珠江三角洲 [     ]

A.城市化以发展小城镇为主导              

B.区域中心城市的带动作用增强

C.基本形成了城乡一体化和城市群体系      

D.城市化向城市群模式转变

2.30 年来,名不见经传的小镇新塘得以迅速发展,主要得益于

①靠近港澳和东南亚 ②平原广阔,土壤肥沃  ③改革开放的政策  ④海运便利 [     ]

A.②③④  

B.①③④            

C.①②④  

D.①②③

3.与长江三角洲地区相比,珠江三角洲地区哪方面发展条件稍差 [     ]

A.良好的区位,便捷的交通              

B.广阔的经济腹地

C.充足的农副产品供应                  

D.地形平坦,水源充足,气候温暖湿润

题型:单项选择题

股指期货理论价格的决定主要取决于以下四个因素:现货指数水平、构成指数的成分股股息收益、通货膨胀水平、距离合约到期的时间。

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