在MS—DOS或PC—DOS的基本组成部分中,除引导程序Bootrecord外,还包

题型:单项选择题

问题:

在MS—DOS或PC—DOS的基本组成部分中,除引导程序Bootrecord外,还包括以下三个部分,它们是()

A、AutoEXEC.BAT、CONFIG.SYS和COMMAND.COM

B、CONFIG.SYS,SETUP.COM和COMMAND.COM

C、IO.SYS,MS—DOS.SYS和COMMAND.COM

D、CONFIG.SYS,IO.SYS和MS—DOS.SYS

考点:自学考试办公自动化原理及应用办公自动化模拟试题(一)
题型:单项选择题

如图所示,长方体发电导管的前后两个侧面是绝缘体,上下两个侧面是电阻可忽略的导体电极,两极间距为d,极板面积为S,这两个电极与可变电阻R相连。在垂直前后侧面的方向上,有一匀强磁场,磁感应强度大小为B。发电导管内有电阻率为ρ的高温电离气体,气体以速度v向右流动,并通过专用管道导出。由于运动的电离气体受到磁场的作用,将产生大小不变的电动势。若不计气体流动时的阻力,由以上条件可推导出可变电阻消耗的电功率。调节可变电阻的阻值,根据上面的公式或你所学过的物理知识,可求得可变电阻R消耗电功率的最大值为

[ ]

A.

B.

C.

D.

题型:单项选择题

血竭的石油醚提取液加新配制的0.5%醋酸铜溶液,振摇后静置分层,石油醚层不得显绿色,是检查()

A.血竭素

B.去甲血竭素

C.海松酸

D.樟脑

E.松香

题型:单项选择题

在SQL语言中,一个基本表的定义一旦被删除,则与此表相关的下列内容中( )也自动被删除。 Ⅰ、在此表中的数据 Ⅱ、在此表上建立的索引 Ⅲ、在此表上建立的视图

A.Ⅰ和Ⅱ

B.Ⅱ和Ⅲ

C.Ⅰ和Ⅲ

D.全部

题型:单项选择题

善去脾胃大肠湿热,为治泻痢要药的是()

A.黄芩

B.芦根

C.栀子

D.龙胆草

E.黄连

题型:单项选择题

President Bush arrived in Washington and forged ahead with an ambitious agenda- (1) tax cuts, vast changes in federal social programs, expansions of executive power and (2) broad remaking of energy and education policies.
Claiming a mandate by simply declaring (3) existence, his early successes dazzled his critics. With guru Karl Rove directing the (4) , Bush won a stunning series of political victories.
He muscled his agenda through (5) friendly Congress, and gained seats for his party in the 2002 midterm elections. (6) biggest triumph came in 2004, when he won a second term despite a (7) unpopular war.
The "permanent" Republican majority he and Rove envisioned even seemed attainable (8) Bush plunged himself into his most ambitious legislative effort yet: a partial privatization (9) Social Security.
But the president who boasted about "political capital" in the heady (10) after his re-election now faces the worst of political fates as he enters (11) final year in office: borderline irrelevance.
The president’s second term has (12) defined by legislative paralysis, marked by record-low approval ratings, presidential candidates who are (13) from his shadow, and a lingering war that’s sapping his remaining reservoirs of (14) .
As he enters his final year in office with the war continuing, Republican (15) for president bolting from his shadow, and his party back in the minority (16) Congress, he is politically weakened, an early entry into lame-duck status.
And the (17) Washington atmosphere he hoped to cure is just as nasty as it was (18) he came to office seven years ago.
"lie’s left our political institutions much (19) troubled than they were before," said Thomas E. Mann, a senior fellow at (20) Brookings Institution, a Washington-based think tank. "He didn’t create the ideological polarization, but he magnified it. \

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