文章列表

• 1.【英语时差8,16】美国平均寿命落后于其他国家2
• For example, a trend in U.S. health care in recent years has been to promote early and frequent screening for diseases. While screening is generally h...
• 2.【英语时差8,16】美国平均寿命落后于其他国家
• In the United States we have many of the worlds best trained doctors and the most advanced medical equipment. So how come were falling behind other co...
• 3.【英语时差8,16】飞鱼真的会飞？2
• Wind passing under and over the wings creates lift, which sends the fish gliding through the air. The fish slaps at the water with its tail to keep th...
• 4.【英语时差8,16】风电场影响气温？2
• When turbine blades spin, they create turbulence similar to how a motorboat churns up the water in its wake. Consequently, cooler air from higher in t...
• 5.【英语时差8,16】风电场影响气温？
• Giant wind turbines are a sight to behold. Theyre big and majestic and, to some eyes at least, even beautiful. But not everyone likes wind turbines. S...
• 6.【英语时差8,16】为何负鼠倒挂于树2
• Like kangaroos, possums are marsupials, and the females carry and nurse their young in pouches on their abdomens. The opossum, Didelphis virginiana, i...
• 7.【英语时差8,16】为何负鼠倒挂于树
• Have you ever seen a cartoon of a sleeping opossum hanging upside down by its tail? Well, you may be surprised to learn that possums dont actually sle...
• 8.【英语时差8,16】食物过敏2
• Do you know what a food allergy is? A study several years ago showed that twenty-five percent of adults believe they have food allergies. According to...
• 9.【英语时差8,16】高品质酒杯配香槟口感更好？2
• Glass Pits And Dirt Deposits Places that might harbor such tiny pockets of air include microscopic scratches and pits in the surface of a glass, and c...
• 10.【英语时差8,16】高品质酒杯配香槟口感更好？
• If champagne sits around long enough for most of its dissolved carbon dioxide gas to form bubbles and escape into the air, we say that the champagne h...