存在于真核生物线粒体中的DNA聚合酶是 A．DNA-polα B．DNA-polβ

资料1：辽宁某进出口公司出口一批五金工具。外汇核销单号：21C199255；出境货物通关单号： 210050204415308000。

该批货物的法定计量单位分别为：钢卷尺：个；攻丝工具：千克/个；锉刀：千克/个

资料2

资料3

USD 76375.37 (FREIGHT USD 3000.00 INCLUDED)

SUB TOTAL:

INSURANCE: USD 250.00

TOTAL: USD 76625.37

PACKAGES: 770CTNS

QUANTTTY: 6225.OOS

1 DOZEN=12PCS

1 GROSS=12DOZS

LIAONING MACHINERY, METALS, MINERALS,

MEDICINES&HEALTH PRODULS I/E CORP.LTD.

CHINA

资料4

TOTAL: 18614.00KGS 15562.00KGS

PACKAGES: 770CTNS1×20, CONTAINER(CMDU2414620)

QUANTTTY: 6225.00S

MEASS: 26.00CBM

LIAONING MACHINERY, METALS, MINERALS,

MEDICINES&HEALTH PRODUCTS I/E CORP.LTD.

CHINA

下图食物网中的猫头鹰体重每增加20g，至少需要消耗植物

A．200g

B．250g

C．500g

D．1000g

甲、乙类物品运输车的汽车库、修车库，每个防火分区的最大允许建筑面积不应大于（）㎡。

A．300 

B．500 

C．800 

D．1000

持有至到期投资以( )进行后续计量。

A．历史成本
B．成本与市价孰低
C．摊余成本
D．现值

To get help, Internet addicts tired of their square-eyed, keyboard tapping ways need look no further than the Web for counseling. There is now an online counseling service at www. relate, org. nz for Internet obsessives. Just e-mail the details of your Internet-induced crisis and help comes direct to your inbox. (46)The new breed of cybertherapists see nothing strange about offering help through the very medium that is swallowing their clients’ free time and splitting their marriages.
Getting hooked on the Internet isn’t confined to a few computer nerds. It’s on the rise everywhere—and women are the most likely addicts. The old stereotypical addict was a young man who spent hours playing games, downloading software or reading messages on newsgroups. (47)Yet, the new image is of a young woman who fritters away hours e-mailing friends, buying books and CDs online, talking in chatrooms and looking for information for next year’s holiday.
Ingrid Parker, once a slave to Internet chatrooms, found her experiences so devastating that she wrote a book to help other addicts break the habit. (48) Her computer dream turned to nightmare when she sold up and moved to be with her cyberpal (who had just left his wife), only to be told a week later that the couple were getting back together. The heart-breaking turn of events gave her the motivation to control her addiction—and write the book Caught in the Web.
For Ingrid Parker, anyone who is married or in a sound relationship should not really be spending hours talking to someone else and ignoring their nearest and dearest. (49)While Parker provided her own therapy by putting her experiences down on paper, she recommends others take up the online counseling offer, or log off from the Worldwide Web gradually.
She said, "It’s like smoking. It’s not a good idea to suddenly go cold turkey. People often e mail me about the problem and I tell them to gradually wean themselves off and not to switch to a scheme where you pay per hour for online time. (50)If they break their resolution, all they end up with then is the same old problem plus money difficulties for the long hours they have spent logged in to the Internet. "
Of course, the Internet is definitely addictive but if you can keep it in control it has advantages, too. Using it can be a steep learning curve so it helps you become very quick at learning. Also there is a huge demand for people in the field of Information Technology (IT) and hours on the Internet are great training.