[单项选择]Television, which first appeared in the 1920s, really changed the （） people viewed the world.
A. idea
B. direction
C. method
D. way

[单项选择]Which probably happened first

[单项选择]The author implies that in the 1920s and 1930s home deliveries of ice ______.


A. decreased in number
B. were on an irregular schedule
C. increased in cost
D. occurred only in the summer

[单项选择]Which of the following was. NOT mentioned as a reason for the demonstration


A. Public transportation.
B. Public peril.
C. Pollution.
D. Disposal of wastes.

[单项选择]Which one of the following is NOT true for the reason why people prefer to buy wood-burning stoves


A. The initial cost is very low.
B. The fuel costs are cheaper.
C. Wood fires are more efficient, cleaner, and safer than ever before.
D. The wood-burning stoves are more efficient than gas or oil ones.

[单项选择]Which of the following can serve as one of the reasons to support the idea that theories are like apples


A. Both of them are either good or bad.
B. Both of them have all sorts of features.
C. Both of them have features that indicate their truth or goodness.
D. Responsible theory choice is dissimilar to responsible shoppin

[单项选择]

In the 1920s demand for American farm products feel, as European countries began to recover from World War I and instituted austerity (紧缩)programs to reduce their imports. The result was a sharp drop in farm prices. This period was more disastrous for farmers than earlier times had been, because farmers were no longer self-sufficient. They were paying for machinery, see, and fertilizer, and they were also buying consumer goods. The prices of. the items farmers bought remained constant, while prices they received for their products fell. These developments were made worse by the Great Depression which began in 1929 and extended throughout the 1930s.
In 1929, under President Herbert Hoover, the Federal Farm Board was organized. It established the principle of direct interference with supply and demand, and it represented the first national commitment to provide greater economic stability for farmers.
President Hoover’ s successor attached even more importance
A. to increase farm production
B. to establish agricultural laws
C. to prevent farmers from going bankrupt
D. to promote the mechanization of agriculture