Many researchers of the solar energy are being done in order to_____.
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 .______, the LAMV has only two hand-operator uses.
A operated easily by the users B More agile and user-friendly than the traditional aircraft. C Without the limitations of the traditional aircraft D operate on their own E Presented by Moller Skycar F Granted by its inventor
2 .In a word, the LAMV can be ______.
A operated easily by the users B More agile and user-friendly than the traditional aircraft. C Without the limitations of the traditional aircraft D operate on their own E Presented by Moller Skycar F Granted by its inventor
3 .The LAMV has multiple engines which can _____.
A operated easily by the users B More agile and user-friendly than the traditional aircraft. C Without the limitations of the traditional aircraft D operate on their own E Presented by Moller Skycar F Granted by its inventor
4 .In the early 20th century, solar energy was used_____.
A in a war B to power water distillation plants in Chile. C to cook food D by Archimedes
5 .Which of the following statements about the coal is true?
A The coal is a kind of fossil fuels B The coal is an efficient fossil fuel. C As a raw material, coal is more important than oil in the chemical industries. D The coal will not be run out.
7 .Solar energy can be used_____.
A when it is purified B directly C after it is distilled D after it is converted to heat
8 .The solar energy system contains_____.
A collectors B shallow fiberglass tray C copper tubes D A, B and C
9 .The clock located inside our brains is similar to our bedside alarm clock because_____.
A it controls when we wake, when we eat and when we sleep. B it has a cycle of 24 hours. C it is a cycle also called circadian rhythm. D it can alarm any time during 24 hours.
10 .In the third paragraph the author wants to tell the reader that_____.
A it is natural for teenagers to stay up late and get up late. B staying up late has a bad effect on teenagers' ability to think and learn. C during puberty most teenagers experience a kind of gray cloud. D it is hard for teenagers to get out of bed in the morning.
