更多"The mechanical energy can be change"的相关试题:
[单项选择]The mechanical energy can be changed back into electrical energy by means of a generator（）
A. 通过发电机这种途径可以将机械能转变为电能。
B. 利用发电机可以将机械能转变为电能。
C. 借助于发电机可以把机械能返回电能。
D. 使用发电机这个方法能将机器产生的能量还原成电。
[单项选择]According to the author energy security can only be achieved by ______.
A. using less oil in power generation
B. replacing fossil fuels with more nuclear power
C. seeking energy self - sufficiency
D. expanding the sources of power supply
[单项选择]According to the author, energy security can only be achieved by ______.
A. using less oil in power generation
B. replacing fossil fuels with more nuclear power
C. seeking energy self sufficiency
D. expanding the sources of power supply
[单项选择]We can conclude from the passage that using an electric car can ______.
A. save more money than using the regular cars in every way
B. prevent pollution and save energy in the long run
C. attract more customers to buy VSPs
D. soon lead to eliminating traditional cars
[单项选择]Which living things can use sun energy directly
A. Animals.
B. Plants.
C. Both animals and plants.
D. All living things.
[单项选择]The energy gained from the sun can then be used during the night to enable the necessary chemical reactions to ______ in his body.
A. conduct
B. proceed
C. progress
D. practice
[单项选择]You can't change your energy cycle, ______ you can learn to make your life fit it better.
A. but
B. or
C. if
D. so
[单项选择]Which of the following can save your energy in the morning
A. Getting up late.
B. Jumping out of bed as quickly as possible.
C. Looking for clean clothes.
D. Sitting for a while before getting out of bed.
[单项选择]You can ask for your money back only if
A. the article cannot be replaced or repaired
B. the article has been sent back immediately
C. you have gone back immediately
D. the article has not gone up in price since you bought it
