出版物进销平衡是指出版物的（）平衡。A、价格与质量B、数量与品种C、门类与品种D、质

企业持有短期投资，一般是为了（）。

A.资金运作

B.结算债权

C.获利

D.库存现金

中年女性。右下肢麻木、无力1年半，由足至膝部，再升至躯干，呈渐进性。现左下肢亦受累。体检发现中、下腹壁反射消失，上腹壁反射存在。

若腰穿检查可发现（）。

A.生化正常

B.蛋白增高，糖和氯化物正常

C.蛋白升高，糖和氯化物降低

D.蛋白正常，糖和氯化物降低

E.蛋白升高，糖和氯化物升高

某化工设备安装工程采用项目总承包模式进行建设，并由某设备监理公司承担监理任务，建设单位分别与设备安装工程公司和设备监理公司签订了工程合同。该设备监理公司在施工单位进行材料采购时，配备4名设备监理工程师实施现场监理。[问题] 1．简要说明设备采购计划的内容。 2．设备采购过程质量监理的任务是什么 3．设备监理工程师在设备采购制造中注意的问题是什么 4．在设备制造过程中应如何加强对不合格品的控制

Exchanging music over the Internet is fun and easy. Better yet, it's free, which means you don't have to pay for any more expensive music CDs. Several online file-sharing services make it easy for music lovers to exchange their favorite tunes with one another.

However, this illegal sharing of music — a form of music piracy(盗版)— is doing harm to the music industry. Industry experts estimate (估计) that US$4.3 billion in worldwide sales was lost to music piracy last year. These lost profits could force record companies to stop producing the music of many popular artists. That would hurt both musicians and music fans alike.

Music producers are puzzled about how to fight music piracy. Their efforts to fight piracy using the law have had only limited success. The music industry did win a legal victory against Napster, a famous music website. The courts ordered Napster to stop giving away copyrighted music from their site. But a number of other music-sharing networks have sprung up in its place.

These new networks are made up of thousands, or even millions, of individuals. Unlike Napster, there's no one company controlling the distribution(发行)of music over each network. So it's nearly impossible to stop the illegal activities.

Now people in the music industry have decided that " if you can't beat them, join them." They've begun to offer legal alternatives to online music piracy. Major music producers have given companies like Apple Computer permission(许可) to sell their music online. Apple's iTune Music Store allows computer users to legally download any song for 99 cents.

Will these new measures save the music industry from piracy? That depends on whether music fans are willing to pay 99 cents fro a song that they can download illegally for free. Unfortunately, many people believe music should be free. The music industry, however, hopes to persuade these music fans to change their tune.

小题1:This text is written to _____.

A．discuss music piracy on the Internet

B．introduce the popularity of online music

C．persuade music fans to give up downloading music

D．protect copyrighted music from being downloaded illegally小题2:Which of the following statements is NOT true?

A．Some online file-sharing services are responsible for music piracy.

B．Napster, a famous music website, broke down because of its piracy.

C．There have been no perfect measures to put an end to piracy.

D．Legal sharing of music is available at Apple's iTune Music Store.小题3:Which of the following statements would the author agree with?

A．The only effective way to fight music piracy is to stop it by law.

B．Music lovers will be persuaded to pay for online music in time.

C．It is certain that no one will be willing to pay for online music.

D．There is a long way for music industry to go in fighting piracy.小题4:The underlined word "illegal" in Paragraph 2 probably means _____.

A．being protected by the law

B．popular

C．being against the law

D．surprising

树木的叶绿体中类胡罗卜素吸收光是（）

A.橙红光

B.绿光

C.红光

D.蓝紫光