1661 年,約翰·伊芙琳 (John Evelyn) 寫道(關於倫敦,但也適用於今天的香港): 「她的居民呼吸的只是一種不純淨而濃重的霧氣,伴隨著一種惡臭而骯髒的蒸氣……腐蝕肺部,擾亂他們身體的整個習慣,因此卡特里爾病、肺結核、咳嗽和癆病在這座城市比在其他城市更加猖獗。除此之外還有整個地球。” (別忘了簽署綠色和平請願...
In this number: Then and now with environmental pollution and the broader social medicine in EuropeNo abstract available.doi:10.1136/jech.51.3.215DonnanS.BMJ GroupJournal of Epidemiology & Community Health
连句成篇请同学们以“Now and Then”为题写一篇英语短文。要求:1.适当运用比较级;2.词数:80-100。参考词汇:traffic, pollution, di
At night, scan the horizon for artificial light sources, such as fires and streetlights, then walk toward the glow of lightpollution. 2019年考研真题(英语一)完形填空 Section Ⅰ That s because they inevitably put the costs of cleaning the air on to individual drivers-who must pay fees or buy...
From then on people have been supposed to use cloth bags and shopping baskets instead of plastic bags in order to protect our environment. Now more and more people have realized the importance of using the cloth bags and the shopping baskets. For one thing it can protect our environment for...
Deposition of sulphur, nitrogen, chlorine and heavy metals, released into the atmosphere by coal-burning and industrial processes, then took place, gradually increasing to maximum levels in the late 20th century.3. Surface water concentrations of chloride are consistent with depositional inputs, ...
9.A.now B.in the past C.in the future D.then 10.A.hoped B.expected C.wished D.looked forward to 11.A.time B.year C.rate D.period 12.A.coal B.oil C.mines D.resources 13.A.missed B.rich C.gone D.enough 14.A.problem B.power C.plan D.idea 15.A.food B.electricity C.en...
decision method during the iterations and which does not consider the noise in the data set sufficiently, the new boosting algorithm is proposed to use probabilistic decisions for every hypothesis at the iterations of the boosting scheme, selecting the data events from a dataset, and then combines...
A sound pressure of 90dB with a frequency of 100Hz does not cause the same auditory sensation as the same pressure with a frequency of 2000Hz. Thedecibel scaleis, then, corrected to represent the auditory sensation, originating the A scale; thus, the unit of measurement is now called dBA...