软件详细设计的方框图方法常用两个盒子:数据盒和过程盒,在数据盒中包含四种描述,它们是

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问题:

软件详细设计的方框图方法常用两个盒子:数据盒和过程盒,在数据盒中包含四种描述,它们是 【4】 、局部数据、数据结构和调用参数描述。

考点:计算机等级考试信息管理技术三级信息管理技术笔试
题型:填空题

胆红素是由什么直接转变而来()

A.血红蛋白

B.球蛋白

C.胆绿素

D.卟啉

E.尿胆原

题型:填空题

汽车产品向购买者提供的澎湃的动力性和优越的操控性是产品的()层。

A.产品核心

B.产品有形

C.产品延伸

D.产品价值

题型:填空题

结合下列材料填空:

材料一  1703年,德国化学家施塔尔系统提出燃素学说,认为物质可以燃烧是因为它们含有燃素.如木炭和金属燃烧释放出“燃素”后,就剩下了失去“燃素”的死灰.但是,人们始终没有找到“燃素”.

材料二  1774年,法国科学家拉瓦锡发现了氧气并研究其在燃烧中的作用.提出了氧化学说,认为燃烧是物质与空气中氧气发生发光放热的剧烈反应.初步揭开了燃烧的神秘面纱.

(1)材料一中,金属铁在氧气中燃烧后失去“燃素”的“死灰”是______(填化学式),木炭燃烧释放出“燃素”的化学方程式为______.

(2)燃烧条件是“氧化学说”的重要内容,翔安海底隧道采用了多种控制燃烧的措施.

①确保良好的通风,除能保证人的安全外,还能使通过隧道的车内汽油充分燃烧,这是考虑到充分燃烧需要______.

②隧道使用了氢氧化铝阻燃材料,它在受热时分解成水蒸气和耐高温的氧化铝,化学方程式为______.氢氧化铝能阻燃的原因是______.

(3)人们对燃烧的认识是不断发展的,请根据下列事实,对初中化学所学的物质燃烧条件提出新的认识.

①CO的含量小于12.5%时,在空气中达到着火点也不会燃烧.

新认识:______.

②木炭在氧气浓度低于14%的空气中,达到着火点也不会燃烧.

新认识:______.

③钠可在氯气中燃烧,镁可在二氧化碳中燃烧.

新认识:______.

题型:填空题

阅读理解。

     In Europe, people hold the fork in the left hand and the knife in the right throughout the meal, a

system that is generally agreed to be more efficient than the American zigzag (曲折的) method.

Americans hold both the fork and the knife in their right hands throughout the meal, so they continually

change their forks to the left hand when they have to cut their meat. It seems to be funny for the

Europeans to see Americans busy changing their dinner sets, making a lot of noises.

      A  few explanations for this American style are as follows:?

     (1) Americans are practical and efficient. Since most of us are right-handed, it is reasonable to

keep our working tools at all times in the right hand that can use them most efficiently.?

     (2) Americans, the master of the New World are rebels (叛逆者).They use the zigzag method to

break the rules in the Old World and in this way they are thumbing their nose at Mother England.

Americans are a restless kind. They do not like to sit in one spot for very long when dining.

     (3) Forced to do so, they respond by "playing" with the silver.?

     Whatever the reason for the practice, it is now certainly as American as apple pie. Europeans

recognize this and are quick to attack it as evidence of American innocence (无知) of form.

Arguments against the zigzag method rest not only on grounds of efficiency but also on those of

tradition. In Old World dining, the knife is held in the right hand continually because it can serve as

an instant defense against the uninvited intruders (入侵者). However, such alertness (警觉) is out

of place in the New World, as every American believes that this is the home of the brave. Americans

juggle their silverware, perhaps, to show that they are not afraid and that one of them holding a fork

is worth any number of them holding blades(刀).?

1. Americans use _______ to hold their fork to pick up the salad.?

A. the right hand

B. the left hand?

C. both hands  

D. either of the two hands?

2. As the masters of the New World, Americans use a different cutting method from that in the 

    Old World to_____.?

A. show their independence of Mother England?

B. show their disrespect to Mother England?

C. add a new tradition to those in Mother England?

D. show off their creativeness to Mother England?

3. In the last sentence, the word "juggle" probably means ____________.?

A. hold      

B. play with        

C. pick up            

D. lay down?

4. Also in the last sentence, the two "them" refer to ____________.?

A. Americans              

B. Europeans and Americans separately?

C. Americans and Europeans separately            

D. Europeans                    

5. Which of the following statements is NOT true? ?

A. European people hold the fork in the left hand and the knife in the right hand.

B. The zigzag eating method is related to American characteristics.?

C. The zigzag eating method has become an American feature.?

D. European people will use the American method because of its efficiency.

题型:填空题

炉膛温度高于()可不点火直接送入煤气。

A.800℃

B.1000℃

C.1200℃

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