文章列表

• 1.【英语时差8,16】糖罐子里的秘密（下）
• Now put a spoon in and smooth the surface of the sugar: all those evenly-spaced crystals will be packed down into an uneven arrangement, filling the e...
• 2.【英语时差8,16】成熟的水果（上）
• Older cultures like the Babylonians used a marker of some sort to designate the space where no number goes, such as what comes between six and nine in...
• 3.【英语时差8,16】抗生素历史（下）
• Since that time, scientists have found that numerous species of fungi produce chemicals to destroy bacteria and that bacteria even produce chemicals t...
• 4.【英语时差8,16】抗生素历史（上）
• When you take an aspirin, a decongestant, or a muscle relaxant, the drug youre taking was probably made by a chemist combining a specific mixture of c...
• 5.【英语时差8,16】成熟的水果（下）
• Plants attract fruit eatersor frugivoresby packing valuable resources into their fruits like sugar and water or important nutrients such as carotenoid...
• 6.【英语时差8,16】有机蔬菜真的更健康吗？（上）
• Every time i go to the grocery stores，i consider buying Organic vegetables because they are supposed to be healthier or something，but they are also ...
• 7.【英语时差8,16】黑猩猩怕火？（上）
• What do you do when the savannah is on fire? If youre a frightened elephant or gazelle, unable to gauge the ferocity or direction of the flames, you r...
• 8.【英语时差8,16】手为什么会颤抖？（上）
• Hold your hand out and try to keep it perfectly still. After a moment, it will probably begin to shake. Hold that same hand out just before you give a...
• 9.【英语时差8,16】食肉鲸和食素鲸（上）
• Everyone is familiar with the riddle: Which came first, the chicken or the egg? This sometimes leads to discussions about bird evolution. But most peo...
• 10.【英语时差8,16】食肉鲸和食素鲸（下）
• Fossil discoveries have begun to unravel the riddle of whale evolution, providing paleontologists with clues. Indohyus was a fox sized, even toed ungu...