During the World War I, psychologist Robert Woodworth de signed the Personal Data Sheet to
A.Y
B.N
C.NG
A.Y
B.N
C.NG
During World War I1, some jobs which previously excluded women were open to them.
A.Y
B.N
C.NG
What happened to the women workforce during World War II?
A.It decreased suddenly.
B.It contributed to the high unemployment rate.
C.It enjoyed a boost.
D.It took over the male-dominated professions.
During World War II, more younger people took up smoking.
A.Y
B.N
C.NG
A.often caught colds
B.never caught colds
C.did not show increased tendency to catch colds
D.did not increase in number
A.British Prime Minister
B.American Prime Minister
C.Chinese Prime Minister
D.French Prime Minister
What made the American film industry develop during the First World War?
A.The drastic drop in imports.
B.The poor quality of European films.
C.The growing demand for war films.
D.The rapid growth of population.
A.fifties
B.fifty
C.fiftieth
D.the fiftieth
When did the U.S. make daylight saving time mandatory for the whole country?
A. In 1918.
B. In 1942.
C. In 1945.
D. During World War II.