C.Parents must exercise some control and show some concern about the cultural influence on the children D.Parents need to intervene 免费查看参考答案及解析 题目: 19 Back in the old days, when I was a child, we sat around the family round table at dinnertime and exchanged our daily exp...
“I was absolutely surprised,” since environmental engineer Dustin Poppendieck from the United States National Institute of Standards and Technology (NIST). “The numbers are significant and could have important impacts when cigarette ends are dealt with indoors or in cars. While much attention has...
About 20,000 years ago, these trends reversed when changes in Earth’s orbit increased summer sunshine over the giant ice sheets, and they began to melt. The sea level rose 130 meters and carbon dioxide was released from the ocean back...
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The last challenge, however, stopped them. The key to the door was trapped in a block of ice. “We have to melt the ice,” Lucy said. “But there’s nothing hot here!” Maggie complained. Travis pulled off his sweatshirt and wrapped(裹)it around the ice. “This keeps me warm,”...
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The first major climatic-glacial threshold was crossed 38 m.y. ago near the Eocene-Oligocene boundary, when substantial Antarctic sea ice began to form... Kennett,James P. - 《Journal of Geophysical Research Atmospheres》 被引量: 498发表: 2012年 Oceanographic...
Weather & Climate Back when our world was cold These days, we often talk about global warming. In fact, the Earth was once the opposite-it was cooling down instead of warming up. Scientists call this period the Ice Age(冰河时代). So far, the Earth has gone through five Ice Ages. But...
如: The ice cracked as [when] I stepped onto it. 我一踩冰就裂了。 2、若主句与从句表示的是两个几乎同时发生的短暂性动作,含有类似汉语“刚要……就”“正要……却”的意思,英语一般要用 as(也可用 when),且此时通常连用副词 just。如: I caught him just when [as] he was leaving the ...
The idea of having to sell their home and move into a retirement home was an extremely painful experience for them. Indeed, old age for them, and many old Americans can mean not only the possible failure of one's health, but the loss of identity and self-worth. W: Yes, it's true...