案例分析题根据国家标准GB8566-88计算机软件开发规范的规定,软件的开发和维护划分为8个阶段,其中单元测试是在()阶段完成的;集成测试的计划是在()阶段制定的;确认测试的计划是在()阶段制定的。 确认测试的计划是在()阶段制定的。
A. 需求分析
B. 概要设计
C. 实现
D. 详细设计
查看答案
案例分析题假如程序员可用的存储空间为4M字节,则程序员所用的地址为(),而真正访问内存的地址称为()。 而真正访问内存的地址称为()。
A. 指令
B. 物理地址
C. 内存地址
D. 数据地址
Questions 11 to 18 are based on the conversation you have just heard.
At a restaurant.
B. At an airport.
C. In a publishing house.
D. At a shopping mall.
(与大城市的生活相比) _________________ , the life in the village is peaceful and quiet.
Questions 81-90 are based on the following passage. It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are paralyzing fish with unknown toxins and then eating away at their flesh. They might be making people sick, too. The name given to this single-cell organism, or dinoflagellate, is Pfiesteria piscimorte- literally, "fish killer. " It was discovered at North Carolina State University in 1988, but at the same time, few scientists believed in its existence, much less in its highly unusual predatory nature. But ongoing research has led to international acknowledgment of the phenomenon and, recently, research funding. Seemingly prompted by an unknown substance secreted by fish, the aggressive creature swims into action. It sends neurotoxins into the water and air, paralyzing a fish’s nervous system, and causing it to gasp for air at the surface. Eventually the fish suffocates. The killer dinoflagellate then attaches itself to the fish and begins sucking away at its flesh. This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing "fish walks" (fish trying to leave the water) and pools of dead fish with holes eaten through them. Whether humans are affected by the dinoflagellate’s toxin remains to be seen. Researchers think it’s unlikely eating fresh fish are in danger, but anyone with frequent exposure to the creature could be in peril. Several researchers working with the algae have reported bouts of memory loss and disorientation. To understand the killer algae further, scientists must fully characterize their toxin and determine what stimulates them to attack. They also need to know if the algae are hurting fish populations, and whether pollutants make them more likely to attack. The passage is primarily concerned with ______.
A. informing readers of different sea creatures
B. describing predatory microscopic organisms
C. solving some long-lasting mysteries about the sea
D. discussing the environment for various fishes