If investors’ expected future incomes incr

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问题单项选择题

If investors’ expected future incomes increase, all else constant, interest rates will:（）

A. fall, while an increase in the demand for financial capital will cause rates to rise.

B. rise, while an increase in the demand for financial capital will cause rates to fall.

C. rise, while an increase in the demand for financial capital will also cause rates to rise.

答案

参考答案：C

解析：

Increases in expected future incomes will decrease savings, which will decrease the supply of financial capita/and increase the equilibrium interest rate, other things equal. If the demand for financial capital rises, interest rates also rise; if the demand for financial capital falls, interest rates will fall.

填空题

（16分）碳和碳的化合物在生产、生活中的应用非常广泛，在提倡健康生活已成潮流的今天，“低碳生活”不再只是理想，更是一种值得期待的新的生活方式，请运用化学反应原理的相关知识研究碳及其化合物的性质。

（1）近年来，我国储氢纳米碳管研究取得重大进展，用电弧法合成的碳纳米管中常伴有大量碳纳米颗粒（杂质），这种碳纳米颗粒可用氧化气化法提纯，其反应化学方程式为：

____C+____K₂Cr₂O₇+ ====___CO₂↑+ ____K₂SO₄ + ____Cr₂（SO₄）₃+ ____H₂O