单项选择题

Questions 22--25 are based on the following passage.
According to the passage, what happened in 1848

A. Gold was discovered.
B. Telephone communications were established.
C. The first railroad was completed.
D. The Golden Gate Bridge was constructed.
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单项选择题
which of the following is elected in the United States
A. President.

B. Vice-president.
C. The members of Congress.
D. All of above.
单项选择题
Who is the woman
A. She is a teacher.

B. She is a school registrar.
C. She is a gardener.

D. She is a student.
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