The passage mainly discusses ______.
A. the differences in average income among countries
B. the relationship between productivity and living standards
C. the causes of the rise in living standards
D. the importance of raising productivity
The principle justifying passive euthanasia in Europe is that terminally ill patients are ______.
A. living a life without consciousness
B. living a life that can hardly be called life
C. too old or too weak to live on
D. too old or too young to approve of euthanasia
The study of the relationship between productivity and living standards is significant in that ______.
A. it calls policymakers' attention to a qualified work force
B. it encourages workers to get better education
C. it helps improve the workers' ability to produce goods and services
D. it enables policymakers to access the latest technology
人民代表大会制度选举产生全国人大和地方各级人大所依据的原则是( )
A. 三权分立原则
B. 民主集中制
C. 等额选举和差额选举相结合
D. 群众选举和上级推举相结合
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