单项选择题

Questions 15 to 17 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now listen to the passage.
What development caused a decline in the use of railroads

A．The use of oversized freight containers.
B．Safety problems with railroad tracks.
C．The growth of the automotive industry.
D．The high cost of meeting environmental regulations.

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单项选择题

As the conversation begins, what are the man and the woman doing

A．Looking at some photographs.
B．Selling cameras.
C．Teaching a photography class.
D．Repairing camera equipment.

单项选择题

What does the woman imply about her car

A．The woman could probably repair it herself.
B．It’s rather small.
C．It will probably cost a lot to repair.
D．It’s probably difficult w drive.

Questions 15 to 17 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now listen to the passage. What development caused a decline in the use of railroads 您的浏览器不支持 audio 元素。

Questions 15 to 17 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now listen to the passage.
What development caused a decline in the use of railroads