将数据和程序都装载和运行于主计算机上，通过网络系统应用于广域_爱下问搜题

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问题单项选择题

将数据和程序都装载和运行于主计算机上，通过网络系统应用于广域地区的的系统结构属于

A．C／S结构

B．B／S结构

C．多层结构

D．集中式结构

答案

参考答案：D

解析：集中式结构早期形成于20世纪60年代.它采用集中式分时处理模式。所有数据和程序都装载和运行在宿主计算机上，一般都是大型和中型计算机系统，除硬件本身外，还要包括操作系统、数据管理软件和应用软件以及其他的辅助软件。

单项选择题

男，60岁，晨起床时觉右上、下肢麻木，但可以自行上厕所，回至卧室因右下肢无力摔倒。检查：神志清楚，右侧偏瘫。其最可能的诊断是（）

A.脑出血

B.脑挫伤

C.脑栓塞

D.脑血栓形成

E.蛛网膜下腔出血

完形填空

Just Help the Next Person
The only highway to go to work that we had to drive was closed down due to an accident on the bridge. A truck had hit the bridge and made it 36 for any traffic to go over it. So in order to get to 37 I had to go a number of miles out of my way.
Not being that 38 with this road and not knowing 39 all the pot holes in the road were, I topped a hill and right in my path was a big pot hole. I felt and heard the familiar sound of a flat tire. I 40 as far to the right as possible and stopped. I tried several times to change the tire, but 41 .
There I sat out in the country and no way to 42 with anybody. Just then, I looked in my rear view mirror and a 43 was pulling out of a pasture behind me. I was 44 and scared at the same time.
I was struggling to get the 45 out when this man in the pickup pulled in behind me. He got out to introduce himself and 46 to help me. When he got the spare out we discovered that the spare is also 47 . He told me he would take the tire and have it 48 and call my husband.
We got the tire fixed 49 he took me back to my car. My husband was there 50 us when we got back. The kind stranger stayed there and helped my husband 51 the tire. After they finished we 52 thanked him and offered to pay him for his 53 .
I will never forget his words, " your thanks is 54 enough pay and I just hope if this ever happens to my wife or daughter someone will be so 55 as to help them."

B．get in touch

A．listening to

B．worrying about

D．searching for

A．imagination

C．rather than

D．better than