单项选择题

Describing and tabulating are associated with ______.

A．inferential statistics
B．descriptive statistics
C．theories of probability
D．inefficiency of counting
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单项选择题
The author of the passage points out that______.
A．keeping cash is the only way to avoid risks
B．the longer you own a stock, the more you lost
C．the high rate of' profit and high rate of risk coexist in stocks
D．the best way to accumulate wealth is by investing in stocks
单项选择题
The author mentions such millionaires as the Rockefellers and Bill Gates to show that______.
A．they are examples for us on our road to wealth
B．a portfolio is essential to financial success
C．they are really rich people
D．they started out on their own
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