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- Make sure the table is securely anchored.
- 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 Free Statins with Fast Food could Neutralize Heart RiskFast food outlets could provide statin ...
- 共用题干 第一篇More Than a Ride to SchoolThe National Education Association claims,The school bus is a mir...
- 共用题干 The FamilyThe structure of a family takes different forms around the world and even in the sam...
- 共用题干 第二篇Where Have All the Frogs Gone?In the 1980s,scientists around the world began to notice some...
- 共用题干 Ecosystem1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where liv...
- 共用题干 Robots May Allow Surgery in SpaceSmall robots designed by University of Nebraska researchers m...
- 共用题干 Teaching Math,Teaching AnxietyIn a new study about the way kids learn math in elementary schoo...