单项选择题

下列计量尺度中,最粗略、计量层次最低的计量尺度是()。

A.定类尺度
B.定序尺度
C.定距尺度
D.定比尺度
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8:30 p.m.OutlookOutlook is back with a new series of reports to keep you update with all that's new in the world of entertainment. Stories go all the way from the technical to the romantic, from stage to screen. There will be reports of the stars of the moment, the stars of the future and the stars of the past. The director with his new film, the designer with the latest fashion, and the musician with the popular song are part of the new Outlook. The program is introduced by Fran LevinE.9:00 p. m.DiscoveryWhen a 10-year-old boy gets a fast dam degree in mathematics or an 8-year-old child plays chess like a grand master, they are considered as geniuses. Where does the quality of genius come from? Is it all in the genes (基因) or can any child be turned into a genius? And if parents do have a child who might become a genius in the future, what should they do? In this 30-minute film, John Walt, the professor at School of Medicine, New York University will help you discover the answer.10:00 p. m.Science HealthIs it possible to beat high blood pressure without drugs? The answer is 'yes', according to the researchers at Tom Smith and three other medical centers. After a study of 800 persons with high blood pressure, they found that after 6 months, those devoted to weight loss—exercise and eating a low-salt, low-fat food—lost about 13 pounds and became fitter. Plus, 35% of them dropped into the 'normal' category (范畴). This week, Dr. John White will tell you how these people reduce their blood pressure to a level similar to what's been achieved with Hypertension drugs.The main purpose of writing these three texts is ______.A.to invite people to see filmsB.to invite people to topic discussionsC.to attract more students to attend lecturesD.to attract more people to watch TV programs
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单项选择题
关于不兑现的纸币本位制的说法,错误的是()
A.这种制度下，流通货币一般是中央银行发行的钞票和硬币
B.这种制度下，黄金仍然是重要的流通和支付手段
C.不兑现的纸币本位制的出现晚于银本位制
D.不兑现的纸币本位制是一种信用货币制度
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