會(huì)議忙人-小布什(1)
- 相關(guān)熱點(diǎn):
- 世界杯
- 國(guó)家冷知識(shí)
- 雅思口語(yǔ)話題
科學(xué)60秒:飛行的代價(jià)
More than 60 mammal species—like the famous flying squirrel—have adapted the ability to sail from tree to tree. , yes. But what’s the evolutionary advantage? One theory suggests gliding save...
危險(xiǎn)實(shí)驗(yàn):把氣球放進(jìn)微波爐里的后果
Stop! The following experiment is dangerous. For your safety and the protection of 1_______, do not try this at home. No, really, don't. This is a balloon, but not just any balloon. It's filled
科學(xué)60秒:白鯊年幼 未必兇猛
They’re everyone’s worst nightmare when it comes to swimming in the ocean: great white sharks. That’s despite the fact that the number of fatal shark attacks annually can usually ____1____. Bu...
科學(xué)60秒:麻醉師的選擇
When they you into the operating room, climate change is probably the last thing on your mind. But maybe it should be on your anesthesiologist’s mind. Because the gases used to knock you out co...