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- It is out of the question that the inspector will come tomorrow.
- 共用题干 Walk a Quarter-Mile or DiemIf you can walk a quarter-mile,odds（可能性）are you have at least six y...
- 共用题干 Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exete...
- 共用题干 Dark Forces Dominate UniverseThe earth,moon,sun and all visible stars in the sky make up less ...
- 共用题干 Animals “Sixth Sense”A tsunami（海啸）was triggered（引发）by an earthquake in the Indian Ocean in Dec...
- 共用题干 第一篇U. S. Blacks Hard-hit by CancerDeath rates for cancer are falling for all Americans,but bla...
- 共用题干 Ecosystem1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where liv...
- The Constitutions vague nature has given it the flexibility to be adapted when circumstances change.
- Baby Talk Babies normally start to talk when they are 13 to 15 months old. Ryan Jones is only ...
- 共用题干 Where Has the Salt Come from?Every now and then,we meet a fact about our earth that makes us f...