問題詳情
51.以下是有关光电鼠标的叙述，其中错误的是
(A)不宜在平滑光亮的平面上操作
(B)无线鼠标的操作精度不高，目前离实用尚有距离
(C)分辨率和帧速率均为其性能参数
(D)鼠标中包含有CMOS感光器、光学透镜和数字信号处理器等部件
(A)不宜在平滑光亮的平面上操作
(B)无线鼠标的操作精度不高，目前离实用尚有距离
(C)分辨率和帧速率均为其性能参数
(D)鼠标中包含有CMOS感光器、光学透镜和数字信号处理器等部件
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
內容推薦
- Start out right away, ________ you'll miss the first train.(A)and (B)but (C)or (D)while
- ________ with so much trouble, we failed to complete the task on time.(A)Faced (B)Face (C)Facing
- 显示器通过显示控制卡(简称显卡)与主机相连。以下有关PC显卡的组成和功能的叙述中，错误的是 (A)显存(VRAM)目前大多用DDR2和DDR3存储器实现，显存和主存统一编址 (B)显卡能将主
- 利用键盘输入汉字时，在键盘和主机之间传输的信息是 (A)输入汉字的内码 (B)输入汉字的字模信息 (C)按键的ASCII码 (D)按键的位置信息
- 在下列有关Windows XP存储管理功能的叙述中，错误的是 (A)内存管理主要由“内存管理器”组件实现，它运行在内核模式 (B)对于32位Windows XP来说，每个进程的最大虚拟地址空
- —Mom, what did your doctor say?—He advised me to live ________ the air is fresher.(A)in where (B
- —Is Jack on duty today?—It ________ be him. It's his turn tomorrow.(A)mustn't (B)won&#
- 以下是有关声卡的一些性能参数： Ⅰ.量化位数 Ⅱ.采样频率 Ⅲ.声道数 IV.合成器类型 上述哪些参数与波形声音的录制质量有关? (A)仅Ⅰ和Ⅱ (B)仅Ⅰ、Ⅱ和Ⅲ (C)仅Ⅰ、Ⅱ和
- 以下是关于台式PC机键盘中部分控制键功能的叙述，其中错误的是 (A)Num Lock键用于控制数字小键盘的功能 (B)Caps Lock键用于切换字母键的大小写输入状态 (C)Esc键通常
- 在下列有关Windows XP处理器调度以及进程与线程优先级的叙述中.错误的是 (A)Windows XP实现了一个优先级驱动的、抢先式的处理器调度系统 (B)进程的优先级与其所含的线程的优
內容推薦
- —The boss said we had only three days to finish the work.—Don't worry. We have already _____
- ADSL是家庭计算机用户接入互联网的常用技术之一，下面有关叙述中错误的是 (A)上网时可同时接听和拨打电话 (B)数据下传速率高于上传速率 (C)数据下传速率可达100Mbps (D)必
- 光盘存储器是计算机外存储器之一。以下有关光盘存储器的叙述中，错误的是 (A)光盘表面有许多凹坑，凹坑的边缘表示信息“1”，凹坑内外的平坦部分表示“0” (B)光驱的寻道时间通常比硬盘驱动器慢
- —Why didn't you tell him about the meeting?—He rushed out of the room ______ I could say a w
- The Chinese are proud of the 29'e Olympic Games ________ in Beijing in 200(A)hold (B)hold
- 集线器(Hub)是组建以太局域网的重要设备之一。以下有关共享式集线器的叙述错误的是 (A)可将传输信号再生和放大，以扩大网络的传输距离 (B)能将一个端口收到的信息向其他多个端口分发出去
- 第二节 完形填空（共20小题；每小题5分，满分30分）阅读下面短文，从短文后所给的四个选项（A,B,C和D）中，选出可以填人空白处的最佳选项，并在答题卡上将该项涂黑。One day, Raul w
- —Did you enjoy yourself at the party?—Yes. I've never been to ________ one before.(A)a more
- At the foot of the mountain(A)a village lie (B)lies a village (C)does a village lie (D)lying a v
- BWelcome to Ontario Parks，a new body set up to manage Ontario's most treasured special places,
- The underlined word“incentive" in paragraph 6 means _____.(A)honor (B)praise (C)excitem
- The facility improvements of Ontario Parks include＿．(A)new programs and services(B)new comfo
- What leads the writer to write this article?(A)Parents want to know how to educate their chi
- 下列哪个选项不是影响PC中CPU芯片性能的主要因素？(A)指令系统 (B)CPU工作频率 (C)内存容量的大小 (D)是否包含cache存储器
- 61．From paragraph 4，we know that Ontario Parks offers visitors＿．(A)the world's new sports a
- (A)natural (B)common (C)strange (D)bad
- EInstead of hitting the beach，fourteen high school students traded swimming suits for lab coats last
- 一下列哪类操作系统的源代码公开的？ (A)Windows (B)Unix (C)Linux (D)OS/2
- According to the text, we can safely say that＿．(A)some visitors suggested more campsites(B)a
- It can be inferred from the text that the students in poorer areas ______．(A)had little chan
- 用补码表示一个32位带符号的整数，其数值范围是 (A)-231~231- (B)-232~ (C)-232~232- (D)-231-1~231
- CJuanito Estrella has been a housekeeping manager on the US-based large passenger ship Carnival Spir
- When the program was over, the students ________.(A)entered that college (B)wrote research r
- 在Web上发布的网页，其文件类型大多是 (A)TXT (B)DOC (C)RTF (D)HTML
- The underlined word "downside" in paragraph 5 probably means＿.(A)disappointment (B