对进境的血液制品进行严格检查,这是属于控制传染源还是切断传播途径?为什么?

A) Declaration by passengers of carried or separately transported of the following items for entry and exit of the country,should be truthfully declared to the Customs:
　　1.Dutiable articles or limited duty-free of entry goods
　　2.Enter and exit of the country of personal use items and excess of the prescribed items for personal use range but items are still required for traveling
　　3.State prohibited of import and export goods and state restrictions on entry and exit of artifacts,currency,gold and silver,and their products,as well as printed materials,audio-visual products and other items.
4.Goods,goods samples,and other items,which exceed passengers' baggage range.
B) Red and green channels:passengers need to declare tax to the customs,or requiring endorsement and clearance procedure,please select the "red channel"; other visitors can choose the "green channel".The "red channel" flag is a red square and the "green channel" flag is a green octagon.
C) The general provisions:
　　1.Customs clearance:please hand over all of your baggage for Customs inspection.Baggage may not be retrieved or taken away before they are released by the Customs.
　　2.Separate transported baggage:must be reported in the" passenger baggage declaration form ".Brought in within six months from travellers entering the country,shall get the clearance from the Customs.
　　3.The "passenger baggage declaration form",Endorsed by Customs,should be kept safely,for easy use of all procedure of the exit or entry of the country for this time.
　　4.Duty-free clearance of goods by Customs:any sale,transfer or changed for other uses within two years,must be reported to the Customs for approval and pay tax.
　　5.Exit or entry baggage granted by the customs registration of the temporary duty-free:please make sure that they are exited from or entered into the country within the approved period.
　　6,Baggage sealed by the Customs:please do not arbitrarily open or damage the affixed seals by the Customs.
　　7,Baggage did not released by the Customs or should be returned:passengers or their agents please complete the formalities within the time limit specified by the Customs,overdue items will be dealt with by the Customs according to law.
D) Restricted inbound and outbound goods:tobacco,alcohol; gold,silver,and their products; national currency; foreign exchange; artifacts (including the works of famous painters of the late modern); travelling goods; Chinese herbal medicines,proprietary Chinese medicines; video tapes and so on.
替你用人手翻译好了,大概你一读使会知,

1、动植物入境没办理相关进境动植物检疫许可证,检验检疫局可以要求收货人办理退运,如果是有害有疫情的,则会采取销毁.
2、如果没有办理此证件,动植物不是有害有毒倾略性生物,且不含任何有害细菌、病毒、线虫、昆虫等有害生物.此动植物还是会被没收的,即不能够入境.
3、即便有原产地的检验检疫证明,仍然要开箱检验检疫,并在检验检疫合格后,才可以报关入境.