在Excel中，对数据源进行分类汇总之前，应先完成的操作是( )。

【名词&注释】

新课程改革(new curriculum reform)、文化背景(cultural background)、儿童心理(children psychology)、兴趣小组活动、外部环境(external environment)、传统媒体(traditional media)、环境决定论(environmental determinism)、创造条件(create conditions)、所起作用、外界影响(external influence)

[单选题]在Excel中，对数据源进行分类汇总之前，应先完成的操作是( )。

A. 筛选
B. 建立数据库
C. 排序
D. 有效的计算

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学习资料：

[单选题]强调人的身心发展的力量最主要源于人自身的内在需要的是( )。

A. 外铄论
B. 内发论
C. 双因素决定论
D. 多因素相互作用论

[单选题]请阅读 Passage 2,完成 1~5小题。 　　Passage 2 　　Old stereotypes die hard.Picture a video-game player and you will likely imagine a teenage boy,by himself,compulsively hammering away at a game involving rayguns and aliens that splatter when blasted.Ten years ago that might have bome some relation to reality.But today a gamer is as likely to be a middle-aged commuter playing "Angry Birds" on her smartphone.In AmericA.the biggest market,the average game-player is 37 years old.Two-fifths are female. 　　Over the past ten years the video-game industry has grown from a small business to a huge, mainstream one.With global sales of $56 billion in 2010,it is more than twice the size of the recorded-music industry.Despite the downturn,it is growing by almost 9% a year. 　　Is this success due to luck or skill? The answer matters,because the rest of the entertainment industry has tended to treat gaming as being a lucky beneficiary of broader technological changes. Video gaming,unlike musiC.film or television,had the luck to be born digital.In fact,there is plenty for old media to learn. 　　Video games have certainly been swept along by two forces: demography and technology.The first gaming generation-the children of the 1970s and early 1980s-is now over 30.Many still love gaming,and can afford to spend far more on it now.Meanwhile rapid improvements in computing power have allowed game designers to offer experiences that are now often more cinematic than the cinema. 　　But even granted this good fortune,the game-makers have been clever.They have reached out to new customers with new methods.They have branched out into education,corporate training and even warfare,and have embraced digital downloads and mobile devices with enthusiasm.Though big-budget games are still popular,much of the growth now comes from "casual" games that are simple,cheap and playable in short bursts on mobile phones or in web browsers. 　　The industry has excelled in a particular area-pricing.In an era when people are disinclined to pay for content on the weB.games publishers were quick to develop "freemium" models,where you rely on non-paying customers to build an audience and then extract cash only from a fanatical few. 　　As gaming comes to be seen as just another medium,its tech-savvy approach could provide a welcome shot in the arm for existing media groups.

One special factor of the success of video games is that__________.

A. demography
B. fiexible pricing
C. digital technology
D. cinematic design

[单选题]班主任田老师鼓励同学们开展兴趣小组活动，却招来了一些科任教师的反对，因为他们觉得这样做会影响学生的考试成绩。面对这种情况，田老师恰当的做法是（ ）。

A. 取得同事支持，继续指导学生活动
B. 尊重同事意见，暂停兴趣小组活动
C. 利用校长威信，平息同事反对意见
D. 接受科任老师意见，重视考试成绩

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