单项选择题

Questions 17 to 20 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the. questions.
Now listen to the passage.
Why should we increase the production of sugar

A．It tastes sweet.
B．We can save plenty of land.
C．We can get more energy.
D．It is one of the most highly concentrated of energy foo

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单项选择题

单项选择题

Questions 17 to 20 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the. questions. Now listen to the passage. Why should we increase the production of sugar 您的浏览器不支持 audio 元素。