X企业出售闲置设备，账面原价20000元，已使用两年，已提折旧2000元，出售时发生

根据图片，选择合适的句子。

A. Pink, pink, sit down.                       B. Orange, orange, touch your head.     

C. White, white, turn around.               D. Black, black, stand up.

1.           2.           3.           4.

Why is （） fun？What de lights may its practitioner expect as 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. Second is the pleasure of making things that are useful to other people. Third is the fascination of fashioning complex puzzle-like objects of interlocking moving parts and watching them work in subtle cycles, playing out the consequences of principles built in from the beginning. Fourth is the joy of always learning, which springs from the （） nature of the task. In one way or another the problem is ever new, and its solver learns something: sometimes （）, sometimes theoretical, and sometimes both. Finally, there is the delight of working in such a tractable medium. The （）, like the poet, works only slightly removed from pure thought-stuff. Few media of creation are so flexible, so easy to polish and rework, so readily capable of realizing grand conceptual structures.

Yet the program （）, unlike the poet’s words, is real in the sense that it moves and works, producing visible outputs separate from the construct itself. It prints results, draws pictures, produces sounds, moves arms. Programming then is fun because it gratifies creative longings built deep within us and delights sensibilities we have in common with all men.

The （）, like the poet, works only slightly removed from pure thought-stuff.

A．poet

B．architect

C．doctor

D．programmer

为防治高血压，WHO建议每日食盐摄入量应小于______g。

A．2

B．6

C．8

D．10

E．12

下列四项中不属于微型计算机主要性能指标的是

A．字长

B．内存容量

C．重量

D．时钟脉冲

“范式”这一概念来源于（）

A.马克思

B.托马斯·库恩

C.施坚雅

D.巴林顿·摩尔