When the disruption occured in the cycle, cycles were pushed back.
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举一反三
- For the following cycles, which belong to power cycles ( ) A: Reheat Cycle B: Regenerate Cycle C: Rankine Cycle D: Refrigeration Cycle
- The nutrient cycles between the living and nonliving parts of an ecosystem are called______________.（ ） A: physical cycles B: chemical cycles C: Biogeochemical Cycles D: biological cycle
- The enemy troops were driven back when they ________ to cross the border.
- I"ve no idea when she"ll be back. ______ you wait or come back later is up to you. A: When B: If C: Whether D: That
- I'll tell you all about it when you ______ back. A: were B: come C: will come
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–When will he be back? --- Not exactly. But it won’t be long _____ he comes back. A: before B: since C: until D: that
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The enemy troops were driven back when they ________to cross the border. A: tried B: attempted
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I don"t know when he ______ back. When he comes back, please let me know. A: would come B: comes C: will come D: is coming
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Tom with his sister ____ computer games when his mother came back. A: was playing B: are playing C: were playing D: is playing
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Here were cycles of industrial prosperity which always collapsed into industrial _____.