| If you roll a single 6-sided die, what is the probability that you will roll an odd number |
| A company knows that 2.5% of the CD players it makes are defective. If the company produces 300,000 CD players, how many will be defective |
| What is money That is not so simple a
question as might appear. In fact, money can only be defined in terms of the
functions it performs—that is, by the need it fulfills. As Sir Ralph Hawtrey
once noted, "Money is one of those concepts which, like a teaspoon or an
umbrella, but unlike an earthquake or a buttercup, are definable primarily by
the use or purpose which they serve." Money is anything, regardless of its
physical or legal characteristics, that customarily and principally performs
certain functions. Three such functions are usually specified, corresponding to the three basic needs served by money—the need for a medium of exchange, the need for a unit of account, and the need for a store of value. Most familiar is the first, the function of a medium of exchange, whereby goods and services are paid for and contractual obligations discharged. A. (A) is common knowledge among informed people B. (B) is a section of a controversial economic theory C. (C) breaks new ground in economic thinking D. (D) is a comprehensive analysis of monetary policy [填空题]simple
[简答题]概率（probability）
[单项选择]There are no inevitable outcomes of social class in child rearing. At the same time, there is no question that social class is important factor in how children are raised and the kind of adults that children become. Regarding social class, sociologists have found that parents socialize their children into the behaviors and norms of their work worlds. Members of the working class are closely supervised and are expected to follow explicit rules at their jobs. If they do not follow the precise rules and do as they are told, they will not keep their jobs. Their experience influences how they deal with their children. As a result, their concern is less with their children’s motivations and more with their children’s out- ward conformity. Thus they are more apt to use physical punishment in managing their children. On the other hand, middle-class parents, who are expected to take more initiative on the job, are more concerned that their children develop curiosity, self-expression, and
A. vague B. difficult C. confusing D. clearly defined 我来回答: 提交
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