单项选择题

Passage One Questions 26 to 28 are based on the conversation you have just heard.

A．Synthetic fuel.
B．Solar energy.
C．Alcohol.
D．Electricity.
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单项选择题
A．The weight and size of the parcel.B．The value of the goods.C．The parcel receipt.D．The telephone number.
A．The weight and size of the parcel.
B．The value of the goods.
C．The parcel receipt.
D．The telephone number.
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