科学60秒:互帮互助等于长命百岁
Jiminy Cricket may not actually hold the door open for his lady friends, but he can still be _____1_____ : researchers from the University of Exeter discovered that when threatened by predators, ...
1℃的爱情
故事1℃ love In an cold winter,a couple had to move out from the luxury villa because of bankruptcy.The husband worked day and night to support the family but with no care of his wife.So she ...
太阳能热水器 (1)
AfghanistanSolar water heaters are devices that use energy from the sun to heat water. Solar water heating is used around the world. The solar water heater described here is based on a design de...
美众议院通过救市提案(1)
Hints: Zach Wamp; Devin Nunes Speaking after the House vote, the president said bipartisan action will help prevent the financial crisis from widening, and sends an important message to global ma...