化学性废物特征?

题型:问答题 简答题

问题:

化学性废物特征?

考点:院感知识医院感染医院感染题库
题型:问答题 简答题

企业持有货币资金的目的主要是为了()。

A.投机的需要

B.经营的需要

C.投资的需要

D.获利的需要

E.预防的需要

题型:问答题 简答题

IS IT TIME TO GET - MP3

Your computer has been playing music for years, one CD at a time.Now hundreds of songs can be stored in your PC if they’re in the MP3 format.

What is it?

MP3 compresses (压缩) music into small computer—friendly files.You access MP3 music several ways: Tunes can be downloaded from websites that have converted (转变) vast music libraries into MP3.Or you can prerecorded CDs into your PC and convert songs in minutes into MP3.Once MP3 music is on your PC’s hard drive, you can play it through your computer’s speakers, “burn” it onto blank CDs or swap (交换) MP3 files with friends using e—mail.

How much?

Software needed to play and convert MP3 music is often free.It is preinstalled (预先安装)on most new computers or can be downloaded from many websites, including MP3, com.Some MP3 sites are free.Just type at around $50 and can hold hundreds of songs.A blank CD on which you can record music costs about a dollar.

Advantages

MP3 turns your home PC into a jukebox (自动唱机).Tiny MP3 players are the size of a deck of cards, making it easy to take hundreds of songs with you.

Disadvantages

You may find that music at many sites is limited.And some only allow you to listen rather than download offerings.Others let you download music that then can’t be copied to MP3 players.And a growing number of new CDs make it impossible to copy songs to a computer.

小题1:How can you get Mp3 music?

A.By turning your home PC into jukebox.

B.By taking you own music or songs with you.

C.By copying songs to a PC through the speakers.

D.By downloading from websites which have converted music libraries.小题2:Which is NOT true according to the passage?

A.Software needed to play and convert MP3 music is often free of charge.

B.MP3 music can be “burned” onto bland CDs or swapped with friends by e-mail.

C.MP3 music can be taken along while traveling.

D.A greater number of new CDs make it possible to copy songs to a computer.小题3:How much will you pay for a MP3 player?

A.Free of charge

B.Free downloading

C.At least fifty dollars

D.About a dollar小题4:What is the closest meaning of the underlined word “burn”?

A.Copy

B.Play

C.Store

D.Change

题型:问答题 简答题

审判人员及法院其他工作人员离任几年内,担任诉讼代理人或者辩护人的,人民法院不予准许( )。

A.1

B.2

C.3

D.4

题型:问答题 简答题

储层非均质性

题型:问答题 简答题

可导致急性肌肉麻痹,四肢无力的药物是()。
可用于治疗梅毒的药物是()。

A.灰黄霉素

B.土霉素

C.青霉素

D.链霉素

E.红霉素

更多题库