In 1993, New York State ordered stores
to charge a deposit on beverage (饮料) containers. Within a year, consumers had
returned millions of aluminum cans and glass and plastic bottles. Plenty of
companies were eager to accept the aluminum and glass as raw materials for new
products, but because few could figure out what to do with the plastic, much of
it wound up buried in landfills (垃圾填埋场). The problem was not limited to New
York. Unfortunately, there were too few uses for second-hand plastic. Today, one out of five plastic soda bottles is recycled (回收利用) in the United States. The reason for the change is that now there are dozens of companies across the country buying discarded plastic soda bottles and turning them into fence posts, paint brushes, etc. As the New York experience shows, recycling involves more than simply separating valuable materia A. local governments fred it easy to manage B. recycling has great appeal for the jobless C. recycling causes little pollution D. other methods are more expensive [单项选择]前列腺摘除术后,前列腺窝出血的护理,哪项最重要( )。
A. 静滴止血芳酸 B. 低温等渗盐水膀胱冲洗 C. 膀胱冲洗液内加凝血药 D. 避免肛管排气,禁忌灌肠 E. 气囊导尿管充水并固定在大腿内侧 [判断题]中间站停放因故障临时甩车的客车,采取两端两条钢轨上放置木止轮器的防溜措施。
A.正确 B.错误 [填空题]地基抗液化措施应根据建筑的() 、(),结合具体情况综合确定。
[多选题]有关国家风险的特点以下说法正确的是( )。
A.在国际金融活动中,不论是政府、银行还是个人都可能遭受国家风险 B.个人不会遭受国家风险 C.在同一个国家范围内的经济金融活动不存在国家风险 D.国家风险分为:政治风险、社会风险和经济风险 E.在同一个国家范围内的经济金融活动也是存在国家风险的 [单项选择]吸宫不全的处理正确的是
A. 一经发现立即清宫 B. 常规术前应用抗生素3天,术后继续 C. 刮出物无须病理检查 D. 大出血也应术前应用抗生素3天 E. 组织机化,一次强行刮出 [单项选择]对某一土样,在一定的击实功能作用下,只有当水的含量为()时,土样才能达到()。
A. 最小含水量,最大干(质量)密度 B. 最小含水量,实测干(质量)密度 C. 最佳含水量,最大干(质量)密度 D. 最佳含水量,实测干(质量)密度 [单选题]以下ONU接收光信号中,( )会引发用户掉线
A.-6dbm B.-13dbm C.-23dbm D.-25dbm [单选题]多功能挠钩的挠杆握把由高强度的( )材料制成。
A.绝缘 B.钢质 C.阻燃 D.铁质 我来回答: 提交
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