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【简答题】
组合数。题目内容:本题要求编写程序,根据公式Cnm= 算出从n个不同元素中取出m个元素(m≤n)的组合数。建议定义和调用函数fact(n)计算n!,其中n的类型是int,函数类型是double。 输入格式:输入在一行中给出两个正整数m和n(m≤n),以英文,分隔。 输出格式:输出组合数计算结果,题目保证结果在类型范围内。 输入样例:2,7 输出样例:21 时间限制:500ms内存限制:32000kb
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【简答题】证券可以看成是各类记载并代表一定权利的（ ）。
【简答题】比例税率即征税对象数额越大，税率越高。（ ）
【简答题】Fill in the blanks with the expreesions given below. Change the form where necessay. Each expression can be used only once. prepare for be bound to stand up for in favor...
【单选题】Which of the following types of pricing is most commonly used when transportation costs are relatively low and the seller wishes to sell in all geographic areas at one price?
A.
Free on board pricing
B.
Zone pricing
C.
Uniform delivered pricing
D.
Freight-absorption pricing
【单选题】When transportation costs are added to production costs, it becomes unprofitable to ship some products over a large distance. This is particularly true of products that:
A.
have a low value-to-weight ratio
B.
have a high value-to-weight ratio
C.
can be produced only in one region
D.
require locally-sourced raw materials
【判断题】When transportation costs are added to our trade model, the low-cost exporting country produces less, consumes more, and exports less than that which occurs in the absence of transportation costs.
A.
正确
B.
错误
【判断题】When transportation costs are added to our trade model, the degree of specialization in production between two countries increases as do the gains from trade.
A.
正确
B.
错误
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