单项选择题


Questions 22 to 25 are based on the conversation you have just heard.

A．Working as a tourist guide.
B．Working as a shop assistant.
C．Helping in a restaurant.
D．Looking after a laboratory.
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单项选择题
A．Steel cables.B．An open carriage.C．Guide rails.D．Strong ropes.
A．Steel cables.
B．An open carriage.
C．Guide rails.
D．Strong ropes.
单项选择题
A．50 years.B．100 years.C．200 years.D．300 years.
A．50 years.
B．100 years.
C．200 years.
D．300 years.
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