在河岸边开挖隧洞，在基坑上下游修筑围堰，施工期间河道的水流由隧洞下泄，这种导流方法称

“给定资料10”提到了日本和德国应对矿难所采取的措施，请分析这对我国解决矿难问题有什么启发
要求：内容具体，表述清晰。不超过250字。

路旁种着一排杨树，每两棵树之间相距5米，从头到尾种了100棵树，小明每天早晨沿着路跑2个来回，他每天跑多少米？

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.

The returned plastic bottles in New York used to ().

A. end up somewhere underground

B. be turned into raw materials

C. have a second-life value

D. be separated from other rubbish

机组救生衣颜色为黄色，旅客救生衣颜色为红色。

按照建设部的有关规定，建筑施工企业取得安全生产许可证，应当具备下列那些安全生产条件？（）

A.建立、健全安全生产责任制，制定完备的安全生产规章制度和操作规程

B.主要负责人、项目负责人、专职安全生产管理人员经建设主管部门或者其他有关部门考核合格

C.保证本单位安全生产条件所需资金的投入

D.管理人员和作业人员经建设主管部门培训并考核合格

E.施工现场的办公、生活区及作业场所和安全防护用具、机械设备、施工机具及配件符合有关安全生产法律、法规、标准和规程的要求