标题: 请教逻辑，谢谢 [打印本页] 作者: 春天的花儿会开 时间: 2003-11-4 22:13 标题: 请教逻辑，谢谢 1、With a record number of new companies starting up in Derderia, and with previously established companies adding many new jobs, a record number of new jobs were created last year in the Derderian economy. This year, previously established companies will not be adding as many new jobs overall as such companies added last year. Therefore, unless a record number of companies start up this year, Derderia will not break its record for new jobs created. Which of the following is an assumption on which the argument relies? A. In a given year, new companies starting up create more new jobs on average than do previously established companies. B. The number of people seeking employment is no larger this year than it was last year. C. This year, the new companies starting up will not provide substantially more jobs per company than did new companies last year. D. Previously established companies in Derderia will be less profitable this year than such companies were last year. E. The number of jobs created in the Derderian economy last year was substantially larger than the number of jobs lost. Answer: C C如何是个假设？ 2、Studies in restaurants show that the tips left by customers who pay their bill in cash tend to be larger when the bill is presented on a tray that bears a credit-card logo. Consumer psychologists hypothesize that simply seeing a credit-card logo makes many credit-card holders willing to spend more because it reminds them that their spending power exceeds the cash they have immediately available. Which of the following, if true, most strongly supports the psychologists’ interpretation of the studies? A. The effect noted in the studies is not limited to patrons who have credit cards. B. Patrons who are under financial pressure from their credit-card obligations tend to tip less when presented with a restaurant bill on a tray with credit-card logo than when the tray has no logo. C. In virtually all of the cases in the studies, the patrons who paid bills in cash did not possess credit cards. D. In general, restaurant patrons who pay their bills in cash leave larger tips than do those who pay by credit card. E. The percentage of restaurant bills paid with given brand of credit card increases when that credit card’s logo is displayed on the tray with which the bill is prepared. the key:B作者: lixiaoyang 时间: 2003-11-4 23:13
第一题:新增的工作机会由两部分构成,老公司和新公司提供的,寻求假设,既然老公司不行了,必然要求新公司zenmeyang 第二题:用一个特殊人群的例子直接支持j结论作者: kathy72 时间: 2003-11-5 22:51
1. 工作机会=老公司+ 新公司, 其中, 新公司增加的工作机会=新开公司数目*每个公司增加的工作机会