Midori moved to the United States to_________.
A. live a more comfortable life
B. give performances
C. be a pupil of a famous violinist
D. enter a famous university
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Why does breathing become difficult for humans during a tornado
A. The wind becomes fast and hot.
B. Air pressure gets steadily lower.
C. The black area moves closer.
D. They are knocked to the ground.
Protestors demonstrated in the capital to show their dissatisfaction with__________.
A. the country's economy
B. the government's efforts to improve economy
C. restrictions on banking withdrawals
D. the high unemployment rate
The main structure of a nuclear family consists of
A. one father, one mother and children
B. grandparents, parents and children
C. wives, husbands and their relatives
D. sisters, grandparents and aunts
信号f(6-3t)表示( )。
A. ( f(3左移6
B. ( f(3左移2
C. ( f(3右移6
D. ( f(-3右移2
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