设计一个大型信息系统首先必须有()。A.一个原型系统作参考 B.一个系统规划作指导

题型:单项选择题

问题:

设计一个大型信息系统首先必须有()。

A.一个原型系统作参考

B.一个系统规划作指导

C.一个开发工具作支持

D.一个逻辑方案作依据

考点:计算机等级考试信息管理技术计算机三级(信息管理技术)27
题型:单项选择题

There is a park near our school. We can see many trees and flowers there. We can see a hill behind the park, too. At the foot of the hill we can see a river. There are some boats on it. It is Sunday today. There are many Young Pioneers(少先队员) in the park. Some are walking and singing. Some are dancing or playing games. Ann and her sister Kate are flying a kite. Tom and his brother Sam are throwing a frisbee (扔飞盘). Their parents are sitting under a tree. All the family are having a good time.

小题1:Where is the hill?

A.Across from the river.

B.Behind the school.

C.In front of the park

D.Behind the park.小题2:Who’s Sam? He is ______.

A.Kate’s brother

B.Ann’s brother

C.Tom’s brother

D.Jim’s brother小题3:Do their parents come to the park, too ?

A.Yes, they do.

B.No, they don’t.

C.Yes, they are.

D.No, they aren’t.小题4:What are Ann and Kate doing?

A.Singing

B.Flying a kite

C.Working

D.Throwing a frisbee小题5:Where are their father and mother sitting?

A.Near our school.

B.Behind the park.

C.At the foot of the hill.

D.Under a tree.

题型:单项选择题

(10徐州20)把铝箔放入CuCl2溶液中,铝箔表面覆盖了红色物质,一会儿又有大量气泡冒出。同学们对“放出气体”这一异常现象进行猜想、实验。其中没有价值的是

A.小宇同学推测气体是氢气并检验

B.小琪同学猜想CuCl2溶液呈酸性并测定

C.小寒同学认为气体是氨气并检验

D.小梁同学认为试剂变质,更换后再实验

题型:单项选择题

上腹部汽车撞伤4小时,患者面色苍白,四肢厥冷,脉搏140次/分,血压60/40mmHg,全腹轻度压痛、肌紧张及反跳痛,首先应考虑为()

A.十二指肠破裂

B.胃破裂

C.肝脾破裂

D.严重的腹壁软组织损伤

E.腹膜后血肿

题型:单项选择题

测深锤适应于水深()、流速也()时的水深测量。

A、较大;较大

B、较小;较小

C、较大;较小

D、较小;较大

题型:单项选择题

SATA硬盘电源线中红色线的正常工作电压是()

A.1.5V

B.3.3V

C.5V

D.12V

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