采用UML进行软件设计时,可用______关系表示两类事物之间存在的特殊/一般关系,用聚集关系表示事物之间存在的整体一部分关系。
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糖精钠被摄食后,在人体内分解、吸收、供给热能,具有营养价值。( )
A. 对
B. 错
高效液相色谱测定方法适用于清凉饮料,配置酒、糖、果汁等食品中酸性人工合成色素的测定。( )
A. 对
B. 错
Most of the career choices in today’s world are not personal choices at all, but people are held (36) by salaries, family and peer (37) etc. Most of us take up jobs or careers followed by a (38) , even though we are not (39) about the work that we are going to do. This is not (40) or does not make any sense to me at all. We are rather eager to work almost 9 to 12 hours at a place that does not (41) us or the work we are not interested in. It is time for us to pull up our socks and make the correct career choices that will (42) a passion to live life to the (43) (44) , especially in your career. To achieve something in life you must possess the desire and the passion to live it. (45) . You have to break down all barriers of paychecks, family and peer pressures, comfort zones, conveniences and start dreaming about the kind of career you want to pursue. This will surely make some people around you unhappy, but (46) .
[说明] 在一个正在实施的系统集成项目中出现了下述情况:一个系统的用户向他所认识的一个项目开发人员抱怨系统软件中的一项功能问题,并且表示希望能够进行修改。于是,该开发人员就直接对系统软件进行了修改,解决了该项功能问题。针对这样一种情况,请分析如下问题: 请用150字以内的文字,说明上述情况中存在着哪些问题