允许使用者对数据库中的抽象数据提出请求(包括查询和修改),支持数据库各种操作的软件系

题型:单项选择题

问题:

允许使用者对数据库中的抽象数据提出请求(包括查询和修改),支持数据库各种操作的软件系统称为

A.命令系统

B.数据库系统

C.操作系统

D.数据库管理系统

考点:计算机等级考试信息管理技术三级信息管理技术笔试25
题型:单项选择题

下列说法正确的是[ ]

A.液态HCl、固态NaCl均不导电,所以HCl、NaCl均是非电解质

B.NH3、CO2的水溶液均能导电,所以NH3、CO2均是电解质

C.蔗糖、酒精在水溶液里和熔融状态时均不导电,所以它们是非电解质

D.铜、石墨均能导电,所以它们是电解质

题型:单项选择题

补写出下列古诗文中空缺的部分。(任选一题作答)

(1)“明月松间照,__________。__________,莲动下渔舟”描写了山村的自然美和村民的生活美。

   子曰:“__________,__________!有朋自远方来,不亦乐乎!”(《论语》)

   是日也,天朗气清,惠风和畅,__________,__________,所以游目骋怀,足以极视听之娱,信可乐也。(王羲之《兰亭集序 》)

(2)天时不如地利,___________。 ___________,失道者寡助。(《孟子》)

   ___________,后不见来者。念天地之悠悠,___________。(陈子昂《登幽州台歌》)

   少焉,月出于东山之上,徘徊于斗牛之间。白露横江,水光接天。纵一苇之所知,凌万顷之茫然。___________,而不知其所止;___________,羽化而登仙。

题型:单项选择题

瞿麦除利尿通淋外,还能()

A.破血通经

B.攻毒杀虫

C.祛风止痛

D.清心除烦

E.消瘢散结

题型:单项选择题

The police fired tear gas and arrested more than 5,000 passively resisting protestors Friday in an attempt to break up the largest antinuclear demonstration ever staged in the United States. More than 135,000 demonstrators confronted the police on the construction site of a 1,000-megawatt nuclear power plant scheduled to provide power to most of southern New Hampshire. Organizers of the huge demonstration said that the protest was continuing despite the police actions. More demonstrators were arriving to keep up the pressure on state authorities to cancel the project. The demonstrator had charged that the project was unsafe in the densely populated area, would create thermal pollution in the bay, and had no acceptable means for disposing of its radioactive wasters. The demonstrations would go on until the jails and the courts were so overloaded that the state judicial system would collapse.
Governor Stanforth Thumper insisted that there would be no reconsideration of the power project and no delay in its construction set for completion in three years. "This project will begin on time and the people of this state will begin to receive its benefits on schedule. Those who break the law in misguided attempts to sabotage the project will be dealt with according to the law," he said. And the police called in reinforcements from all over the state to handle the disturbances.
The protests began before dawn Friday when several thousand demonstrators broke through the police lines around the cordoned-off construction site. They carried placards that read "No Nukes is Good Nukes," "Sunpower, Not Nuclear Power," and "Stop Private Profits from Public Peril. " They defied police order to move from the area. Tear gas canisters fired by the police failed to dislodge the protestors who had been prepared with their own gas masks or facecloths. Finally the gas-masked and helmeted police charged into the crowd to drag off the demonstrators one by one. The protestors did not resist the police, but refused to walk away under their own power. Those arrested would be charged with unlawful assembly, trespassing, and disturbing the peace.

With whom were the jails and courts overloaded

A.Prisoners

B.Arrested demonstrators

C.Criminals

D.Protestors

题型:单项选择题

金融机构的准备金存款具有以下的特点( )。

A.按季结息

B.存储自愿

C.遇到利率调整时不分段计息

D.结息时按结息日的利率计息

E.遇到利率调整时分段计息

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