This passage centers mainly on ______ .
A: harnessing energy through chemistry
B: our last source of power
C: how water power is produced
D: the amount of solar energy that can be utilized
A: harnessing energy through chemistry
B: our last source of power
C: how water power is produced
D: the amount of solar energy that can be utilized
举一反三
- There are two basic ways of harnessing solar energy: firstly, by converting it directly into _____ energy to heat water; and secondly, by converting it into electricity.
- 单选题 ( 2.0 分 )<br/>Which of the following statements is true according to the<br/>passage? A: Nuclear power is a safe and reliable energy source. B: solar energy is always available as a source of energy. C: Water and steam energy has been successfully used in some<br/>countries. D: The real solution to energy crisis lies in natural sources of<br/>energy.
- As a heat engine，（） energy is the source of power by which the diesel engine can be operated.
- Which of the following is irreplaceable resource? A: solar energy B: petroleum C: wind power D: tidal energy
- We can learn from the passage that________. A: as far as energy source is concerned, salt water is useless because of its chemical properties B: the working principle of an vibrating water column is to use water as a direct power driving a generator C: Britain is pursuing a method that the Japanese have already put into practice D: Britain is the most advanced country in developing new energy source