搜题请搜索小程序“爱下问搜题”
问题 单项选择题

根据汉字国标GB2312-80的规定，1KB存储容量可以存储汉字的内码个数是______。

A．1024

B．512

C．256

D．约341

答案

参考答案：B

解析： 汉字的内码也就是汉字的内部码，又称汉字机内码。无论用何种输入码，计入计算机后就立即被转换为机内码进行存储、运算和传送。规则是将国际码的高位字节、低位字节各自加上128(十进制)或80(十六进制)。例如：“中”字的内码以十六进制表示时为D6D0。这样做的目的是使汉字内码区别于西文的ASCII码，因为每个西文字母的ASCII码的高位均为0，而汉字内码的每个字节的高位均为1。

单项选择题

下列哪项对诊断肝硬化最具参考价值

A．脾肿大
B．蛋白电泳7球蛋白明显增高
C．蜘蛛痣与肝掌
D．肝肿大且质地坚硬
E．胃镜示食管胃底静脉曲张
查看答案
填空题


Solving a problem can be broken down into several steps. First, the problem must be identified correctly. Psychologists refer (1) this step as problem representation. For many problems, figuring (2) which information is relevant and (3) is extraneous can be difficult and can interfere (4) arriving at a good solution. Clearly, before a problem can be solved, it must be obvious (5) the problem is, however, this is not as easy (6) it might seem. One obstacle to efficient problem representation is functional fixedness, that is, allowing preconceived notions and even prejudices (7) color the facts. Most people tend (8) see objects and events in certain fixed ways, and by being inflexible in viewing the problem, they may be unable to notice the tools (9) the solution. Once the problem is identified accurately, (10) , the second step consists (11) considering the alternatives for a solution. A common way to evaluate alternatives is to write them (12) and then make a list (13) advantages and disadvantages for each solution. Here again, people may be limited by prior experiences. Often people adopt mental sets (14) lead them to the same problem-solving strategies that were successful for problems (15) the past. Although that can be helpful most (16) the time, sometimes a new situation requires a different strategy. (17) that case, the mental set must be abandoned, (18) new alternatives must be explored.
After the alternatives have been compared, a strategy must be selected (19) among them. One way to avoid becoming mired in the options is (20) try the best option with a view to abandoning it for another (21) the results are unfavorable. This attitude allows many people to move on expeditiously (22) the next step—action. The strategy selected must be implemented and tested. If it solves the problem, no further action is necessary, but if (23) , then the cycle begins again, starting (24) problem identification. By continuing to review the problem (25) repeat the problem-solving steps, the solution can be improved upon and refined.
查看答案