填空题

Choose TWO letters, A-E.Write the correct letters in boxes 25 and 26 on your answer sheet.Which TWO of the following are provided by plants to the human worldA foodB artefactC treasureD energyE clothes

25（）

【参考答案】

A
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City transport developed slower than other means of communication.（）

A．真
B．假
C．Not Given
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