植树造林可以防风固沙、增加降水量、改善温室效应、美化环境，这

搜题请搜索小程序“爱下问搜题”

问题选择题

植树造林可以防风固沙、增加降水量、改善温室效应、美化环境，这说明（）。

A．环境影响生物

B．生物影响环境

C．生物适应环境

D．生物能进行合作

答案

答案：B

题目分析：判断属于生物与环境的哪种关系的方法是根据影响结果而定，生物适应环境：一般是生物具有与其环境相适应的形态特征或生活方式，如鸟有翅膀，鱼有鳍，青蛙冬眠等，环境影响生物：指由于环境改变是生物受到影响，如南方植物种到北方后，水果味道发生改变，生物影响环境：指由于生物的生活使得环境发生变化，如种树可以产生阴凉环境，在沙地上载种植物，能防风固沙，体现了生物对环境的影响。

阅读理解

Millions of people are now using what are called“peer-to-peer”networks. Basically, you link your computer to other computers all across the country, mostly so you can give something in exchange for music for free.“But here's the problem,”“Early Show”Consumer Correspondent Susan Koeppen says as part of the broadcast's series, “Somebody's Watching You”: thieves are using the same networks, and they're not interested in music－they're seeking access to your financial information.

Beth Pope learned the hard way. When she put peer-to-peer software on her computer, she had one goal in mind: increasing her music library.“I thought I could get access to other people's music folders and they could have access to my music folders,”she says,“and that was about it. I didn't think it went any further than that.”

Are Your Medical Records Watched? That is, until she was contacted by the Secret Service－with shocking news－someone had stolen personal information from her computer－using the very software she used to trade music. With the help of David Dunn, a member of the Secret Service Electronic Crimes Task Force, Koeppen decided to see what personal information she could find using a peer-to-peer network.

Thieves typically seek documents such as credit reports, tax returns, or the federal financial student aid application, Dunn says.“Obviously,”says Dunn,“we aren't going to download it, because it's someone's personal information. I'm sure that, whoever (this file sharer) is didn't want her (student aid application) confirmation number available online for somebody to download.”Pope says she's done using peer-to-peer.“I've gotten all of that off my computer, ”she says.“I pay for music now. It's the best way to do it. There's no way that I would ever do that again.”

The trade group for file sharing software companies says they are working on better systems to prevent the misuse of the peer-to-peer networks. Still, Koeppen urges that people, for instance, delete Lime Wire from their computers, or make sure they have the latest version, which should have updated security features.