问答题


Questions 25 and 26 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.
Now listen to the news.

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单项选择题
Why do astronomers often use photographic plate
A．To decrease the time it takes to photograph objects.
B．To avoid using a telescope.
C．To sharpen the color of what they observe.
D．To obtain images of distant objects.
单项选择题
Which of the following didn’t help make jeans popular in the 1950s and 1960s
A．TV programs.
B．Rock and roll music.
C．Rock stars.
D．Movie stars.
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