【单选题】关于局域网中拓扑构型不正确的是()
A.
总线型局域网中采用共享介质的介质访问控制方法
B.
环型拓扑结构简单适应传输负荷重、实时性要求较高的应用环境
D.
星型拓扑的维护处理最复杂,环型拓扑传输延迟不确定,维护简单
【单选题】What probably caused the woman's problem?
【单选题】有: int w=7 , x=12, y=3, m; 执行下面语句后 m 的值是 m=(w>x)?w:x; m=(m>y)?m:y;
【简答题】What probably caused the fire?
【简答题】介质共享型局域网中的介质访问控制 (MAC) 协议需要具体解决哪 3 个问题 ? CSMA/CD 的介质访问控制的墓本思想可以简单概括为什么 ?
【判断题】2混合床的树脂再生只能采用体外再生的方法
【单选题】根据税法的概念与特点,下列表述不正确的是()。
A.
税法的调整对象是税收分配中形成的权利义务关系
B.
税收具有强制性、无偿性、固定性的特点,其中强制性是其核心
C.
税收所反映的分配关系要通过法的形式才得以实现
D.
税法是以规定纳税义务为核心构建的,任何人都不能随意变更或违反法定纳税义务
【单选题】Why does Japan limit the import of potatoes?
A.
It wants to expand its own farming.
B.
It intends to keep its traditional diet.
C.
It is afraid of the spread of disease.
D.
It is worried about unfair competition.
【单选题】According to Mr. Harris, what probably caused the problem?
A.
The computer was infected by some viruses.
B.
The accounting program previously installed has some problems.
C.
The computer was too outdated to run a program.
D.
Some liquid was spilled on the computer.