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- A young man is being hailed a hero tonight after rescuing two children.
- 共用题干 Early Ideas about the Universe1 Early man got his ideas about the universe by looking at the s...
- We must abide by the rules.
- 共用题干 Migrant（移民的）WorkersIn the past twenty years,there has been an increasing tendency for workers ...
- 共用题干 A Star Is Born1 The VLT (Very Large Telescope) is the worlds largest telescope（望远镜）and is taki...
- 共用题干 Ecosystem1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where liv...
- The once barren hillsides are now good farmland.
- 共用题干 Migrant（移民的）WorkersIn the past twenty years,there has been an increasing tendency for workers ...
- 共用题干 Ecosystem1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where liv...