单选题 A user reports that while printing a large document,the local printer fails to print and the document cannot be deleted from the queue. What is the MOST likely cause of the problem?()
The printer cable is not bi-directional.
The user does not have full printer administration rights.
The computer cannot spool and send the print job fast enough.
The print job is too big for the amount of available memory.
单选题 Which cleaning product should be used for the inside of a computer?()
glass cleaner
a simple ammonia and water solution followed by an antistatic solution
a bleach solution followed by water
compressed air
单选题 A customer receives a CD-RW disk from a computer vendor. The customer tries to read the disk in a computer with a 4X CD-ROM drive and is unable to read any information. The customer tries the CD-RW disk on a 32X CD-ROM drive and it reads correctly. What is the cause of this problem?()
The 4X CD-ROM drive has dirty optics or laser and requires cleaning.
The 4X CD-ROM drive needs to be jumpered to support CD-RW disks.
The 4X CD-ROM drive does not support the multi-read specification.
The 4X CD-ROM is fine, but the CD-RW disk has a flaw in its format.
单选题 Which components are designed to be conveniently replaced by a service technician?()
SMDs(surface mounted devices)
FRUs(field replacement units)
FESs
BEMs
单选题 What is the FIRST and most important step in system troubleshooting?()
back up the system data
gather information about the problem
try rebooting the system to see if that fixes the problem
check the System Error Log or Event Log
单选题 When replacing a power supply, what MUST the technician observe?()
voltage
current
wattage
resistance
单选题 Which IP block is designated for private network use?()
127.0.x.x
169.0.x.x
190.100.x.x
192.168.x.x
单选题 What is the standard IRQ for the keyboard?()
9
0
1
7
单选题 Where are the first computer instructions available when a microcomputer is powering up?()
floppy drive
boot.ini
ROM
config.sys
海南西环高铁于去年底正式开通运营,全球首条环岛高速铁路诞生了。铁路最早出现在()
纵向偏离时,每个车辆转向架所承受的货物重量不得超过货车容许载重量的(),且两转向架承重之差不得大于10t。
采用过户转让的票据多指股票、政府债券和提单等。
周作人散文笔调从容闲逸,别有一种平淡悠远的趣味,其作品《零余者》《写在人生边上》都体现了这种风格。
关于女性输尿管下列哪项是正确的()
中国银行间市场交易商协会(以下简称交易商协会)负责受理企业债务融资工具的发行注册。交易商协会不接受注册的,企业可于( )后重新提交注册文件。
影响横封效果的因素有()
固定资产改良过程发生的变价收入应记入()。
简述脑梗死的治疗原则。
患者输注少白红细胞悬液约1小时时,出现呼吸急促,大汗淋漓,寒战,腰背部剧痛,心前区压迫感,心率120/分钟,呼吸30/分钟,血压75/45mmHg,体温39.8℃。随即出现血红蛋白尿。最可能的临床诊断是()