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【单选题】
最早提出勾股定理的数学著作是( )。A.
《髀算经》
B.
《九章算术》
C.
《梦溪笔谈》
D.
《天工开物》
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反馈参考答案：
举一反三
【单选题】To say that stock prices follow a "random walk" is to argue that
A.
stock prices rise, then fall, then rise again.
B.
stock prices rise, then fall in a predictable fashion.
C.
stock prices tend to follow trends.
D.
stock prices cannot be predicted based on past trends.
【单选题】Why do the students say this:
A.
To recommend against buying stock in a corporation
B.
To explain why consumers need to be very cautious
C.
To give reasons why governments regulate corporations
D.
To complain about negative trends in advertising
【单选题】To say that stock prices follow a "random walk" is to argue that
A.
stock prices rise, then fall.
B.
stock prices rise, then fall in a predictable fashion.
C.
stock prices tend to follow trends.
D.
stock prices are, for all practical purposes, unpredictable.
【单选题】In comparing money to a share of Microsoft stock held by an individual, we can say:
A.
only the money is a means of payment, but both are units of account.
B.
only the money is a means of payment, but both are stores of value.
C.
the share of stock is an asset, but money is a liability.
D.
both the Microsoft stock and the money are liabilities.
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