机体排斥微生物侵袭的能力属于下列哪一种免疫功能（） A.免疫识别 B.免疫防御 C.

Questions 61-70 are based on the following passage.

While some international couriers are showing signs of exhaustion, EMS (Express Mail Service), the generic name for the courier services of post offices, seems to be finding its stride. Known as Datapost in Britain, as Chronopost in France, and as A1-Barid al-Mumtaz in Saudi Arabia, EMS is now second in the international courier business (jointly with TNT Skypack). Last year it delivered 5.6 million items, weighing less than 20 kilograms each, across borders. That and its annual growth rate of around 5 percent have worried DHL, the market leader, enough for it to counter-attack in the Courts.
On October 26, a Dutch judge ruled against DHL on all three counts filed against the Dutch post office: that the three-initial name was too close to DHL’s; that the orange lines in the EMS logo were too similar to DHL’s dark red ones; and that the claim to the widest route system in the world was unfounded. DHL has threatened the Swiss post office with similar action, but it may reconsider after the Dutch ruling.
EMS has some advantages over the private couriers. One is a dense ready-made network of offices, especially in Europe, the avowed target area of the private couriers. Another advantage is a long tradition of working with customs authorities. In a business where minutes count, it pays to have good friends at customs. That advantage particularly irritates the private couriers because there is no legal way to combat such unquantifiable coziness.
The private courier services are also annoyed because in countries like Switzerland and Italy, where the post office is officially a monopoly, they pay it a fee. In Switzerland DHL says it pays more than SFr lm ($ 708,000) "to the competition" each year. In France the couriers have won a battle for exoneration.
Although governments are under little pressure to keep prices artificially low, EMS is often cheaper than the private couriers, but not always. A recent test in Britain (on a domestic route) showed Datapost about halfway between the least and the most expensive, but gave it full marks for speed and service.
Each national EMS is free to set its rates and follow its own rules on things like bulk discounts. The Universal Postal Union, based in Berne, determines how costs and revenues are split between sending and receiving countries, and standardizes procedures. More than 100 postal administrations have linked into the system—and more are coming, including Russia’s. That makes the feisty EMS particularly happy since its rivals have not been allowed to serve anywhere in Russia.

Which of the following can be inferred about Russia

A. Russia needed to compete with other European countries in EMS.
B. There were no private courier services in Russia.
C. The postal administration in Russia linked with the network long ago.
D. Russia was quite hesitant in the international cooperation.

（）是公司各机构、部门和岗位职责应当保持相对独立，公司基金资产、自有资产、其他资产的运作应当分离。

A.健全性原则

B.有效性原则

C.独立性原则

D.相互制约原则

下表是元素周期表的一部分。

族 周期	ⅠA	ⅡA	ⅢA	ⅣA	ⅤA	ⅥA	ⅦA
一	①
二	②	③	④		⑤	⑥
三		⑦	⑧			⑨[	⑩

（1）表中元素⑩的氢化物的化学式为          ，此氢化物的还原性比元素⑨的氢化物的还原性             （填强或弱）

（2）某元素原子的核外p电子数比s电子数少1，则该元素的元素符号是     ，其固态单质属于          晶体

（3）已知某些不同族元素的性质也有一定的相似性，如元素③与元素⑧的氢氧化物有相似的性质。写出元素③的氢氧化物与NaOH溶液反应的化学方程式

                          

（4）表中⑥对应的一种单质呈V形，该单质属于       分子（填“极性”或“非极性”）

在广告公司内负责广告的设计，创作和制作的是（）

A.客户服务部

B.创作部

C.媒介部

D.市场调研部

外国人在日本发行的日元债券称为（）。

A.扬基债券

B.伦布兰特债券

C.武士债券

D.猛犬债券