OKR的O是Objective（目标），KR是KeyResults（关键指标）。OKR管理除了关注做事情的目标，同时也在过程中进行与确认方向（）

分布式数据库的查询优化需要考虑的主要因素包括I／0代价、CPU代价和通信代价。一般情况下，分布式数据库查询优化的首要目标是（)。
A.I/O代价
B.通信代价
C.CPU代价
D.I/O代价和CPU代价之和

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在分布式数据库中，查询处理和优化比集中式数据库要复杂得多，其中查询优化需要考虑的主要因素包括I／O代价、CPU代价和通信代价。一般而言，分布式数据库查询优化的首要目标是（)。
A.使查询执行时I/O代价最省
B.使查询执行时CPU代价最省
C.使查询执行时通信代价最省
D.使查询执行时I/O和CPU代价最省

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Literary critics should be as _______ as possible in analysis and judgment
A. imperative
B. objective
C. competitive
D. productive

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Michael Harrison opens an online store where people from all over the world can purch

英译中 Information and communications are central to modern society and organizations. One approach to understand the working environment is to consider an organization as a communications system. An organization that has open lines of communication with valid, honest information going up, down, and throughout the organization will be much more effective and a much better place to work than the organization that attempts to restrict the flow of information or distort and deceive. When leadership attempts to keep workers in the dark, workers tend to become distrustful. This undermines their cooperation.
It is easy to understand the value and importance of open, honest communications and valid information. Yet, few organizations are able to function in this manner. In the long run, poor communication will undermine the entire organization. Restricting communication and distorting information are symptoms of short-range thinking. We must avoid these stupid, short-sighted traps and constantly strive for and open communications system with objective information.

下面关于I／O操作的叙述中，错误的是（)。
A、I/O设备的操作是由CPU启动的
B、I/O设备的工作速度比CPU慢
C、同一时刻计算机中只能有一个I/O设备进行工作
D、I/O设备的操作是由I/O控制器负责全程控制的

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下列程序段 for（i=1;i<=n;i++) A[i,j]=0;的时间复杂度是（）

姓氏“筱”的读音是（)。
A、tiāo
B、xiǎo
C、yōu
D、yóu

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母亲的血型是O、MN、Rh＋，孩子的血型是O、M、Rh＋，其父亲的血型不可能是：（)

下面划线字的注音全都正确的一项是（)

氧氮分析仪中O的测量形式是（)。
A、O2
B、CO
C、O
D、CO2

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