问题
单项选择题
计算机的技术性能指标主要是指______。
A) 计算机所配备的语言、操作系统、外部设备
B) 硬盘的容量和内存的容量
C) 显示器的分辨率、打印机的性能等配置
D) 字长、运算速度、内/外存容量和CPU的时钟频率
答案
参考答案：D
解析： 微型计算机的主要技术性能指标包括字长、时钟主频、运算速度、存储容量、存取周期等。
搜题请搜索小程序“爱下问搜题”
计算机的技术性能指标主要是指______。
A) 计算机所配备的语言、操作系统、外部设备
B) 硬盘的容量和内存的容量
C) 显示器的分辨率、打印机的性能等配置
D) 字长、运算速度、内/外存容量和CPU的时钟频率
参考答案：D
解析： 微型计算机的主要技术性能指标包括字长、时钟主频、运算速度、存储容量、存取周期等。
If you’re ready to add more physical activity to your life, here are some tips: Make physical activity part of your routine(惯例) like brushing your _____ or going to work. Try biking to work at least once a week, using the _______ more often, or walking to some places near home. But talk to your______ before you start an exercise routine, especially if you haven’t been very active or have _____ problems.  Walking is one of the best fitness activities. To keep up a routine, you can ____ with family members, friends, or pets. Keep track of your steps(步子)______ a step counter( 计算器). You can buy one at a sports ______. This can help you to walk more. If you don’t have time for one 30-minute walk, break it up into ______ 10-minute walks. Find an activity that you enjoy, and stay with it. Change it with other activities so you don’t get______. For example, walk 3 days a week, ______ a softball, volleyball, or basketball club for fun and exercise. By finding more activities you enjoy, you’ll have a greater chance for success.
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