Display units, printers are(73)device.A．inputB．outputC．storageD．communication
Display units, printers are(73)device.
A．input
B．output
C．storage
D．communication
相关考题：
Tile hardware are the parts of computer itself including the(71)(CPU)and related microchips and micro -circuitry, keyboards, monitors, case and(72)(including floppy, hard, CD, DVD, optical, tape, etc...). Other extra parts called(73)or devices include mouse, printers,(74), scanners, digital cameras and cards(sound, colour, video)etc... Together they are often referred to as a(75)or PCs.A．Central Processing UnitB．Center Process UnitC．Central Processing UnixD．Counting Process Unit
Bluetooth is a universal radio interface in the(71)frequency hand that enables portable electronic devices to connect and communicate wirelessly via short-range, ad hoc networks. Each unit can simultaneously communicate with up to(72)other units per piconet. Moreover, each unit can simultaneously(73)to several piconets. Eliminates the need for wires, cables and connectors for and between cordless or mobile phones, modems, headsets, PDAs, Computers, printers, projectors, local area networks, and so on, and paves the way for new and completely different devices and applications. Technology Characteristics(74)symbol rate exploits maximum available(75)bandwidth。A．1.95GHzB．2.45GHzC．4.45GHzD．11.45GHz
3、定义一个只有水平线的表格，其中第一行背景为灰色，且第一行单元格中的内容为表格标题。表格所有单元格的内容与单元格边框之间的空白间距为5像素，表格水平外边框粗细为3像素。能实现该要求的选项为（）。A．＜table border="3" frame="above" rules="groups" cellpadding="5"＞ ＜tr bgcolor="gray"＞ ＜th＞项目＜/th＞ ＜th＞华北＜/th＞ ＜th＞华中＜/th＞ ＜/tr＞ ＜tr＞ ＜td＞软件＜/td＞ ＜td＞73 units＜/td＞ ＜td＞13 units＜/td＞ ＜/tr＞ ＜tr＞ ＜td＞硬件＜/td＞ ＜td ＞100 units＜/td＞ ＜td＞120units＜/td＞ ＜/tr＞ l
盒模型显示方式是弹性伸缩盒（)A．display:flexB．display:blockC．display:inlineD．display:inline-block