Inflation occurs whenever:
Aggregate demand rises.
B. The price of any given commodity rises.
C. The average price of most goods and services rises.
D. The tax rate is lower than the government spending rate.
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What is Inflation?
A. Inflation is a decrease in the general level of prices.
B. Inflation is an increase in the general level of prices.
C. Inflation is a number that that compares prices in one year with prices with some earlier base year.
D. Inflation is measured in percentage rates that helps people.
What is the definition of Deflation?
An increase in the general level of prices
B. A decrease in the general level of prices
C. The rate that banks make available to their business customers
D. Involves spending more money
测量的准确度是表示测量结果中（）大小的结果。
A. 系统误差
B. 随机误差
C. 粗大误差
D. 标准偏差
为了正确地说明测量结果，通常用（）来评定测量结果。
A. 精密度
B. 准确度
C. 精确度
D. 稳定度
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