急起腹痛、腹泻、脓血便，无发热，有慢性腹泻史（）。 A．急性普通型 B．中毒型休克型

企业信息化是指在个业管理的各个活动环节中，充分利用现代入息技术、信息资源和环境，建立信息网络系统，使企业信息流、资金流、物流、工作流集成和整合，实现资源的优化配置，不断提高企业管理的效率和水平，进而提高企业的经济效益和竞争能力的过程。

Failure is probably the most fatiguing (令人疲劳的)experience a person ever has. There is nothing more tiring than not succeeding, being blocked, not moving ahead. It is an evil circle. Failure causes fatigue, and fatigue makes it harder to get to work, which adds to the fatigue.

We experience this tiredness in two main ways: start-up fatigue and performance fatigue. In the former case, we keep putting off a task that we are forced to take up. Either because it is too boring or because it is too difficult, we avoid it. And the longer we put it off, the more tired we feel.

Such start-up fatigue is very real, even not actually physical, not something in our muscles and bones. The remedy (治疗法) is obvious, though perhaps not easy to apply: willpower exercise. The moment I find myself turning away from a job, or putting it under a pile of things I have to do, I clear my desk of everything else and attack the difficult item first. To prevent start-up fatigue, always treat the most difficult job first.

Performance fatigue is more difficult to handle. Here we are willing to get started, but we can't seem to do the job right. Its difficulties appear to be insurmountable and however hard we work, we fail again and again. The mounting experience of failure carries with it an ever-increasing burden of mental fatigue. In such a situation, I work as hard as I can, then let the unconsciousness take over.

72.. Which of the following can be called an evil circle？

   A. Success-zeal-success-zeal.

   B. Failure-tiredness-failure-tiredness.

   C. Failure-zeal-failure-tiredness.

   D. Success-tiredness-success-tiredness.

73.. According to the passage , when keeping putting off a task, we can experience _______.

   A. tiredness    B. performance fatigue   C. start-up fatigue   D. unconsciousness

74.To overcome start-up fatigue, we need ________ .

   A. toughness   B. prevention           C. muscles        D. strong willpower

75.. The underlined word "insurmountable" in the last paragraph probably means ________ .

   A. that can not be overcome             B. that are known

   C. that can not be imagined               D. that can not be objected

国债是政府根据（）和（）原则取得的财政收入的一种形式。

在为商品安排货位时，首先要考虑商品的性能和储存要求，这是为了( )

A．确保储存商品的安全

B．方便作业

C．提高仓容利用率

D．先进先出

国务院 * * 温 * * 于2009年11月3日在人民大会堂向首都科技界发表了题为《让科技引领中国可持续发展》的讲话。在当今世界，科学技术（）

A.是最活跃的生产要素

B.是构成社会生产的联结性要素

C.是经济发展最重要的推动力量

D.对调节生产关系起决定作用