常开防火门平时在防火门()作用下处于开启状态。(A)闭门器  (B)顺序器  (C)

People are indulging in an illusion whenever they find themselves explaining at a cocktail (鸡尾酒) party, say, that they are "in computers," or "in telecommunications," or "in electronic funds transfer". The implication is that they are part of the high-tech world. Just between US, they usually aren’t. The researchers who made fundamental breakthroughs in those areas are in a high-tech business. The rest of us are (71) of their work. We use computers and other new technology components to develop our products or to organize our affairs. Because we go about this work in teams and projects and other tightly knit working groups(紧密联系在一起的工作小组), we are mostly in the human communication business. Our successes stem from good human interactions by all participants in the effort, and our failures stem from poor human interactions.

The main reason we tend to focus on the (72) rather than the human side of the work is not because it’s more (73) , but because it’s easier to do. Getting the new disk drive installed is positively trivial compared to figuring out why Horace is in a blue funk (恐惧) or why Susan is dissatisfied with the company after only a few months. Human interactions are complicated and never very crisp (干脆的, 干净利落的) and clean in their effects, but they matter more than any other aspect of the work.

If you find yourself concentrating on the (74) rather than the (75) , you’re like the vaudeville character (杂耍人物) who loses his keys on a dark street and looks for them on the adjacent street because, as he explains, "The light is better there!".

74（）

A．technology

B．sociology

C．physiology

D．astronomy

估计1支粉笔的质量应用[     ]

A．千克作单位    

B．克作单位   

C．厘米作单位

北京市为成功举办2008年奥运会，决定从2003年到2007年五年间更新市内现有的全部出租车，若每年更新的车辆数比前一年递增10%，则2003年底更新现有总车辆数的（参考数据：1.1⁴=1.46，1.1⁵=1.61）[ ]

A．10%

B．16.4%

C．16.8%

D．20%

有些人购买服装时，见到一种服装的式样、颜色比较符合自．己的要求，他不会立即购买，而是先要征求一下其他人的意见。这是由于（）对消费者购买行为的影响。

A．生活方式 

B．个性 

C．年龄 

D．自我概念

SQL语言是一种 (96) 语言，其主要功能有 (97) ，它的典型句型为；
SELECT A1，A2，．．．An
FROM R1，R2，．．．Rm
WHERE F
其中Ai(i＝1，2，…，n)、Rj(j＝1，2，…，m)和F分别是 (98) 。
关系模式学生成绩表(S#，C#，Score)中S#是学生的学号，C#是课程号，Score是学号为S#学生的C#号课程的成绩。若要查询每门课程的平均成绩，且要求查询结果按平均成绩升序排列，平均成绩相同时，按课程号降序排列，可用SQL，语言写为 (99) 。若查询的结果仅限于平均分数超过85分的，则应 (100) 。

A．目标表列名、基本表名、逻辑表达式
B．基本表名、目标表列名、数值表达式
C．基本表名、目标表列名、逻辑表达式
D．目标表列名、基本表名、数值表达式