3、计算机安全属性中的可用性是指_______。A.得到授权的实体在需要时能访问资源和得到服务B.网络速度要达到一定的要求C.软件必须功能完整D.数据库的数据必须可靠 - 查题网

>> 高等继续教育 / 计算机统考

高等继续教育 / 计算机统考

正确率：统考%

3、计算机安全属性中的可用性是指_______。
A.得到授权的实体在需要时能访问资源和得到服务
B.网络速度要达到一定的要求
C.软件必须功能完整
D.数据库的数据必须可靠

积分

计算机统考

参考答案：

点击查看答案

佳题速递：

10、There are three kinds of goals: short-term, medium-range and long-term goals. Short-term goals are those that usually deal with current activities, which we can apply on a daily basis. Such goals can be achieved in a week or less, or two weeks, or possibly, months. It should be remembered that just as a building is no stronger than its foundation, long-term goals cannot amount to very munch without the achievement of solid short-term goals. Upon completing our short-term goals, we should date the occasion and then add new short-term goals that will build on those that have been completed. The intermediate goals build on the foundation of the short-term goals. They might deal with just one term of school or the entire school year, or they could even extend for several years. Any time you move a step at a time, you should never allow yourself to become discouraged or overwhelmed. As you complete each step, you will enforce the belief in your ability to grow and succeed. And as your list of completion dates grow, your motivation and desire will increase. Long-term goals may be related to our dreams of the future. They might cover five years or more. Life is not a static thing. We should never allow a long-term goal to limit us or our course of action.统考英语阅读理解

孔子提出“学而时习之”“温故而知新”体现了教学( )原则 A、直观性原则 B、启发性原则 C、理论联系实际的原则 D、巩固性原则现代教育理论

常微分方程

胸部片状阴影X线表现有哪些特点A、病变形态多不规则，其大小差异较大B、密度较淡，病变中可见走行其内的血管影，称为遭玻璃样密度C、实变病灶密度较高但不均匀D、存在空气支气管征或支气管气像E、病变部分与正常肺组织间无截然分界医学影像学

(单选题) _ _ _ _ you like it or not, I don’t care.( ) A、WhatB、WhichC、WhetherD、If大学英语(一)

非自由行驶状态车队的特性有制约性、延迟性和（）。(A) 不确定性 (B) 突然性 (C) 变化性 (D) 传递性交通工程学基础