试题与答案

检索其他目录检索网点的搜索引擎叫做()。 A.索引检索引擎 B.目录检索引擎 C.S

题型:单项选择题

题目:

检索其他目录检索网点的搜索引擎叫做()。

A.索引检索引擎

B.目录检索引擎

C.Spider搜索引擎

D.元搜索引擎

答案:

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题型:单项选择题

An analyst does research about money-weighted rate of return and time-weighted rate of return. On 30 June 2010, an investor opened an account with $1000000. The account experienced the following activity over the next two years:

Date Withdrawals Net Ending Balance
30 June 2011 $471000 $451000
30 June 2012 $499900
As of 30 June 2012, the investor's money-weighted rate of return and timeweighted rate of return:()

A. are both positive.

B. are both negative.

C. have different signs.

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