问题 单项选择题

Why is (21) fun What delights 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
(22) nature of the task. In one way or another the problem is ever new, and its solver learns something:sometimes (23) , sometimes theoretical, and sometimes both. Finally, there is the delight of working in such a tractable medium. The (24) , 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 (25) , 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.

A.repeating

B.basic

C.non-repeating

D.advance

答案

参考答案:C

判断题
问答题

(三)

某水利枢纽加固改造工程包括以下工程项目:

(1) 浅孔节制闸加固。主要内容包括:底板及闸墩加固、公路桥及以上部分拆除重建等。浅孔闸设计洪水位29.5m;

(2) 新建深孔节制闸。主要内容包括:闸室、公路桥、新挖上、下游河道等。深孔闸位于浅孔闸右侧(地面高程35.0m左右);

(3) 新建一座船闸。主要内容包括:闸室、公路桥、新挖上、下游航道等;

(4) 上、下游围堰填筑;

(5) 上、下游围堰拆除。

按工程施工需要,枢纽加固改造工程布置有混凝土拌和系统、钢筋加工厂、木工加工厂、预制构件厂、机修车间、地磅房、油料库、生活区、停车场等。枢纽布置示意图如图8-1所示。示意图中①、②、③、④、⑤为临时设施(包括混凝土拌和系统、地磅房、油料库、生活区、预制构件厂)代号。有关施工基本要求如下。

(1) 施工导流采用深孔闸与浅孔闸互为导流。深孔闸在浅孔闸施工期内能满足非汛期十年一遇的导流标准。枢纽所处河道的汛期为每年的6、7、8三个月。

(2) 在施工期间,连接河道两岸村镇的县级公路不能中断交通。施工前通过枢纽工程的县级公路的线路为A→B→H→F→G。

(3) 工程2004年3月开工,2005年12月底完工,合同工期22个月。

(4) 2005年汛期枢纽工程基本具备设计排洪条件。

[问题]

按照合理布置的原则,指出示意图中代号①、②、③、④、⑤所对应的临时设施的名称。