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【单选题】
一位研究者对儿童的创造力发展很感兴趣。她对3、4、5岁的儿童分别进行测试。一年以后，又对同一批被试进行了测试。这种研究称为A.
聚合交叉研究
B.
横断研究
C.
纵向研究
D.
个案研究
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反馈参考答案：
举一反三
【单选题】National savings equals:
A.
private savings plus consumption spending.
B.
trade balance plus the budget balance.
C.
private savings plus the budget balance.
D.
government spending plus taxes.
【单选题】Which of the following is (are) a source (sources) of funding for private investment spending?I.savings of the owners of a family business II. profits of a large corporation III. borrowing
A.
I only
B.
II only
C.
III only
D.
I, II, and III
【单选题】Which of the following is false about private savings and government savings?
A.
SP = Y - T - C
B.
Unlike private saving decisions, government saving decisions are often made with an eye toward their effect on output and employment.
C.
Total savings (S) = SP + Sg.
D.
The national income identity can help us to analyze the channels through which government saving decisions influence macroeconomic conditions.
E.
None of the above; all statements are true.
【单选题】Which of the following is false about private savings and government savings? ( )
A.
SP = Y - T - C
B.
Unlike private saving decisions, government saving decisions are often made with an eye toward their effect on output and employment.
C.
Total savings (S) = S p + S g .
D.
The national income identity can help us to analyze the channels through which government saving decisions influence macroeconomic conditions.
E.
None of the above; all statements are true
【单选题】In a closed economy, national savings equals private savings:
A.
minus consumption spending.
B.
plus the budget balance.
C.
minus investment spending.
D.
minus tax receipts.
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