As I completed my 26th lap the Porsche puffed blue smoke.我跑了26圈时，保时捷车冒出了蓝烟。The shop charges up to $500 to tune up a Porsche.那家店调试一辆保时捷收费高达500美元。The Porsche 911 reminds me of the worst parts of the yuppie era.这辆保时捷911让我想起...
manganese peroxide二氧化锰The sample was molten and decomposed with sodium peroxide , leached and acidified hot water and - volumed.试样以过氧化钠熔融分解,热水浸取、酸化,定容.Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化...
我看电影的时候就怕别人絮语.I don't like to hear others murmuring while watching film.编前絮语这一篇文章, 值得推荐.Language of the garrulous before making up this one article, be worth to recommend.如果四书五经变成恋人絮语, 将是什麽样的经典?If the Classics were ...