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- She stood there，trembling with fear.
- 共用题干 Solar StormAt the end of October 2003,a sudden solar storm hit the earth.A solar storm refers...
- 共用题干 Earth Angels1 Joying Brescia was 8 years old when she noticed that cigarette butts（烟头）were lit...
- 共用题干 第三篇 Mobile Phones : Are They about to Transform Our Lives?We love them so much that some of us...
- New born babies can discriminate between a mans and a womans voice.
- 共用题干 DVD for Rent1.A pay-for-play system for video DVD will emerge by summer as an alternative,a...
- 共用题干 Wide World of RobotsEngineers who build and program robots have fascinating jobs. These resear...
- The city has decided to do away with all the old buildings in its center.
- 共用题干 Cloning（克隆）:Future Pertect?1 A clone is an exact copy of a plant or animal produced from any ...
- 共用题干 Chimpanzees1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habit...