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t er having spent whol e morni ngs on the r iver, I always go home wi th an em pt y bag. 39。 You must gi ve up f ishing!39。 my f r iends say.39。 It 39。 s a waste of t im e. 39。 But t hey don39。 t r
础上实现的。 国家环保局对治理成本核算的结果表明,如果在现有的治理技术水平下全部处理 20xx 年排放到环境中的污染物,需要的一次性直接投资占当年 GDP 的 %,同时每年还需另外花费治理运行成本 2874亿元,占当年 GDP 的 %。 未来几年我国将背负着巨大环境清理费用,这种情形将十分令人担忧。 另一个令人担忧的问题是目前仓促满足能源高需求的方式。 由于缺乏有效的能源预测和规划
ol e day we unpacked the boxes, fi l ed the cupboards and tidi ed, until we were extrem ely ti red. We di d sl eep i n cl ean beds that night. We hadn’t had any warm food to eat al l day, but we
. But t his does not wor ry me. Som e fi sher men a re unlucky. Instead of catchi ng fi sh, they catch old boot s and rubbish. I am even l es l ucky. I never cat ch anyt hingnot even ol d boot s. Af
. When t he doctor answer ed the phone, Mr Gil ber t sai d he was inquir ing about a cer tain pat ient, a Mr John Gi lbert . He asked i f Mr Gi lbert 39。 s operati on had been successf ul and t he
octor answer ed the phone, Mr Gil ber t sai d he was inquir ing about a cer tai n pat ient, a Mr John Gi lber t. He asked i f Mr Gi lber t39。 s operat ion had been successf ul and the doct or told
关,一方面,住宅小区的建设受到城市发展条件的制约,要紧紧围绕着现代化城市的标准进行建设;另一方面,住宅小区的建设反过来又会促进城市的发展,并为之带来巨大的经济效益、社会效益和环境效益。 城市化以及随之而来的现代化城市是人类社会生产力发展到较高水平的产物。 伴随着社会进步和城市的发展,住宅小区的建设 理念也在不断发生变化。 人们家居理念的变化 我国改革开放 20 年来国民经济迅速发展
限值 施工阶段 主要噪声源 噪声限值 [dB(A)] 昼间 夜间 土石方 推土机、挖掘机、装载机等 75 55 打桩 各种打桩机等 85 禁止施工 结构 混凝土搅拌机、振捣棒、电锯等 70 55 装修 吊车、升降机等 65 55 表 16 工业企业厂界噪声标准 时段 单位 标准值 标准来源 昼间 dB(A) 60 《工业企业厂界噪声标准》(GB1234890) II类标准 夜间 dB(A) 50
ly t han others, and ar e able t o ski p over per iods on ten m ont hs or t wenty years wi t hout seem i ng weir d, a feat which we can never at tempt. I n our li fe, our m inds are a gr ay mat er
was sti l as f at as ever . He l ed m e i nt o his r oom and hurr i edl y hi d a l arge parcel under his desk. I t was obvi ous t hat he was ver y em bar rassed. When I asked him what he was doing,