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发布时间: 1970-01-01

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1最佳选择题 3分

下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项

  • A. When enzymes can be commonly found in living cells.
  • B. When the technology of producing a new type of fuel cell appears.
  • C. When the technology of a new type of fuel cell is suitable for mass production.
  • D. When the technology of mass producing cell phones appears.
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正确答案: -

本题解析: 暂无解析

2最佳选择题 3分

下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项

  • A. They had trouble keeping enzymes in fuel cells active.
  • B. They had trouble keeping biological cells active.
  • C. They had trouble producing fresh enzymes.
  • D. They had trouble finding mechanism for producing enzymes.
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正确答案: -

本题解析: 暂无解析

3最佳选择题 3分

下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项

  • A. when bags of enzyme are embedded in the new fuel cell.
  • B. when glucose from a sugary liquid goes through the enzyme.
  • C. when the enzyme oxidizes the glucose from a sugary liquid that goes through a pocket.
  • D. when the enzyme oxidizes the sugary liquid that goes through a pocket.
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正确答案: -

本题解析: 暂无解析

4最佳选择题 3分

下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项

  • A. Their limitless power generation capacity is amazing.
  • B. Their limited power generation capacity is a good beginning.
  • C. Their limited power generation capacity is the result of great efforts.
  • D. Their limitless power generation capacity is a major accomplishment.
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正确答案: -

本题解析: 暂无解析

5最佳选择题 3分

下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项

  • A. The new fuel cells run on sugar that is easy to find.
  • B. The new fuel cells am environment friendly.
  • C. The new fuel cells are biologically degradable.
  • D. It will take some time before the new fuel cells can be used in popular products.
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正确答案: -

本题解析: 暂无解析

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