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问题 选择题

下面四幅图为我国长江、黄河、松花江、珠江四条河流的流量对比图，请你根据这四条河流的水文特征，判断A 、B 、C 、D 四幅图河流流量代表长江的是[ ]

A．A

B．B

C．C

D．D

答案

答案：B

判断题

外汇经纪人代客户接洽外汇买卖，旨在收取佣金，他们不承担外汇风险。（）
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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
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