流通性较强的债券在收益率上往往有一定折让，折让的幅度反映了债券流通性的价值。（）

缺铁性贫血早期最可靠的依据是( )

A．血清铁减少
B．血清铁蛋白降低
C．血清总铁结合力增高
D．运铁蛋白饱和度降低
E．红细胞内原卟啉增高

投入冷态的汽包双色水位计时，在气温20℃时暖体时间应不少于30min。（）

为什么要进行农业生产经济效益分析？

Marko Tskitishvili, an economist, has been studying the drop in the price of the average household computer in the U.S. and wonders if computers should still be considered a luxury good or if it has now become a normal good. He conducts a survey of 500 people and finds the following:

Assume that 1998 is the base date. Based on the above data, Tskitishvili would conclude that a computer is a:（）

A. luxury good with income elasticity of 1.01.

B. normal good with income elasticity of 0.84.

C. luxury good with income elasticity of 1.18.

浙江省经国务院批复成为全国首个“转变经济发展方式综合试验区”的试点省份。你认为下列举措有利于促进浙江经济发展方式转变的是（）

①统筹城乡发展，走农业现代化道路

②提高自主创新，走新型工业化道路

③加强企业管理创新，提高劳动者素质

④继续实施浙江区域发展总体战略

A.①②

B.②③

C.①④

D.③④