Harry Potter is mentioned in the passage, because scientists_____.
参考答案(由小熊题库网聘请的专业题库老师提供的解答)
请点击↑↑↑ 查看官方参考答案 按钮
习题解析
请点击 查看官方参考答案 按钮
您可能感兴趣的题目
1 .According to the first paragraph, when can we share our sweet drinks with our cell phones?
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.
2 .What trouble did Minteer and Klotzhach have in their research?
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.
3 .According to Paragraph 5, electrons are released_____.
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.
4 .What is exciting about the new fuel cells?
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,
5 .According to the last paragraph, what is NOT true of the new fuel cells?
A The new fuel cells run on sugar that is easy to find. B The new fuel cells are 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.
7 .What is true of microwaves?
A Their wavelengths are shorter than those of visible light. B Their wavelengths are longer than those of visible light. C They are different from visible light as they are a kind of radiant energy. D They are visible to the human eye.
8 .What is NOT true of the invisibility device?
A It is made of a special material with unusual ability. B Microwaves bounce off it when they strike it. C Microwaves pass through it when they strike it. D It bends the microwaves all the way around until they reach the opposite side.
9 .What does the word “coaster” mean in the passage?
A A disk or plate placed under a drinking glass to protect a table top. B A vessel engaged in coastal trade. C A roller coaster. D A resident of a coastal area.
10 .Harry Potter’s invisibility cloak doesn’t have any real competition yet, because_____.
A scientists have not found out how his cloak works B the cloaking device is a total failure C the cloaking device works only for microwaves D the cloaking device works only for visible light
