题目内容

What does the conversation say about the course

A. The course is for beginners.
B. The daytime lessons are more popular.
C. The course won't begin until August 11.
D. The course is available at 10:00 am, 4:00 pm and 6:00 am.

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信号传输的目的是( )。

A. ( 测试传输媒质的性能
B. ( 信号形式的变换
C. ( 传递信号中所包含的信息
D. ( 放大信号幅度

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

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

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