不符合莫拉菌属特点的是（）。 A.氧化酶试验阳性 B.不分解糖类 C.不产生吲哚 D

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 materials from the rest of the rubbish. A discard remains a discard until somebody figures out how to give it a second life—and until economic arrangements exist to give that second life value. Without adequate markets to absorb materials collected for recycling, throwaways actually depress prices for used materials.

Shrinking landfill space, and rising costs for burying and burning rubbish are forcing local governments to look more closely at recycling. In many areas, the East Coast especially, recycling is already the least expensive waste-management option. For every ton of waste recycled, a city avoids paying for its disposal, which, in parts of New York, amounts to savings of more than $100 per ton. Recycling also stimulates the local economy by creating jobs and trims the pollution control and energy costs of industries that make recycled products by giving them a more refined raw material.

Recycling has become the first choice for the disposal of rubbish because ().

A. local governments find it easy to manage

B. recycling has great appeal for the jobless

C. recycling causes little pollution

D. other methods are more expensive

寒冷区域航行时救生艇柴油机机油要求凝点为-35℃，应选用国产机油品种的是（）

A.HQ-8D稠化机油

B.HC-11（T-11）柴油机机油

C.HC-14（T-14）柴油机机油

D.HC-16（T-16）柴油机机油

下面四个选项中，说法不正确的一项是( )。

A．管理环境决定了规划管理的方向、方式、方法和效果

B．事物的发展和变化决定了城市规划管理系统具有动态性

C．必须要以发展的观点、动态的观点来认识城市规划管理工作

D．管理过程是指管理对象由原始状态通过管理活动达到现实状态的途径

反馈

换轨如需拆除回流线时有何规定？