The total amount of energy received per minute by the whole earth is a great sum, but it is only a tiny fraction of the total energy radiated by sun.
A: sent in
B: sent for
C: sent out
D: sent up
A: sent in
B: sent for
C: sent out
D: sent up
举一反三
- He _____his parents to attend the graduation ceremony at Harvard. A: sent out B: sent in C: sent for D: sent up
- Not only the USA and Russia but also China _______ manned satellites to circle the earth. A: has sent up B: has been sent up C: have sent up D: have been sent up
- Which of the following statements is supported by the passage A: The sun shines constantly and gives out the same amount of energy every year. B: The cause of the sun' s fluctuations is its loss of energy with each passing year. C: It is sure that the energy sent out by the sun will drop when more sun spots appear. D: Fluctuations in weather patterns are the results of the pull of gravity.
- The whole building was sent up in flames when the exploded.1.obscure2.extent3.exterior4.external5.petrol6.oblige7.delay8.decay9.decent10.route
- How much energy given off by the sun reaches the earth A: 100 % but indirectly B: 5 % C: 50 % D: only a very tiny amount