How did the "Wars of the Roses" get the name？
A. The wars were fought over the ownership of a rose garden.
B. The wars took place when roses were in bloom.
C. The wars were fought because of a love affair.
D. The two sides fought under banners depicting a white rose and a red rose.
根据索洛经济增长模型，一国GDP的增长率主要取决于该国的技术进步率。
A. 正确
B. 错误
经济学主要涉及()。
A. 决定个人收支平衡的各种因素
B. 决定公司的盈利或者亏损的各种因素
C. 决定资源配置及其效率的各种因素
D. 决定政府调控经济及其有效性的各种因素
如果MPK-δ=n+g成立，则该式所对应的资本存量是资本存量黄金率。
A. 正确
B. 错误
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