搜题请搜索小程序“爱下问搜题”
问题 选择题

2011年12月12日，江苏省徐州市丰县首羡镇中心小学一辆校车因躲避一辆人力三轮车，发生侧翻滑入路边泥潭，造成15名学生死亡，8名学生受伤。这些学生所受到的侵害来自[ ]

A．意外事故

B．社会侵害

C．自然侵害

D．家庭侵害

答案

答案：A

单项选择题

下列选项中，哪一个是IPV6链路的一部分，并且由单一介质组成，一网桥或者二层交换设备为边界（）。

A、节点

B、局域网段

C、子网

D、邻节点
查看答案
单项选择题

Why is(71)fun What delights may its practitioner espect his reward First is the sheer joy of making things.As the child delights in his mud pie,so the adult enjoys building things,especially things of his own design.Secong is the pleasure of making things that are useful to other people.Third is the fascinanon of fashioning complex puzzle-like objects of interlocking moving parts and watching them work in subtle eyeles,playing out the consequences of principies built in from the beginning.Fourth is the joy of always learning,which springs from the(72)nature of the task.In one way or another the problem is ever new,and its solver learns something:sometimes(73),sometimes theoretical,and sometimes both.Finally,there is the delight of working in such a tractable medium.The(74),like the poet,works only slightly removed from nure thought-stuff.Few media of ereation are so flexible,so easy to polish and rework,so readily capable of realizing grand conceptual structures. Yet the program(75),unlike the poet’s words,is real in the sense that it moves and works,producing visible outputs separate from the comstrct itself.It prints results,draws pictures,produces sounds,moves arms.Progamming then is fun because it gratifies creative longings built deep within us and delights sensibities we have in common with all men.

（71）处填（）。

A．programming

B．composing

C．working

D．writing
查看答案