儿童烧（烫）伤面积达20%左右就可以发生休克，往往在早期会出现肾功能不全。

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.

The passage focuses primarily on ______.

A. problems of post offices in Britain
B. the new courier service—EMS
C. the competition between private and international courier services
D. differences between EMS and DHL

裂解气压缩机紧急停车后，必须确认关闭的阀门有（）。

A、主汽阀

B、调速阀

C、抽汽止逆阀

D、透平去消音器阀

一个人在用餐之后是昏昏欲睡还是精神饱满与所用食物中的蛋白质有关。多数蛋白质中都含有一种叫酪氨酸的氨基酸，它进人大脑，促使多巴胺和新肾上腺素的形成，从而使人易兴奋。禽类和鱼类含酪氨酸最多。不过并非所有含酪氨酸的食品都能使大脑兴奋。猪肉中含酪氨酸，但脂肪妨碍了它的吸收。由上可以推出( )。

A．含蛋白质越多的食物越利于智力增长

B．鱼类中的蛋白质易于消化吸收

C．鱼类中含丰富的多巴胺类物质

D．猪肉中脂肪含量多于鱼类

关于施工合同的违约责任不正确的是( )。

A．承包人不能按合同工期竣工，工程质量达不到约定的质量标准，或由于承包人原因导致合同无法履行，承包人承担违约责任，双倍赔偿因其违约给发包人造成的损失
B．发包人不按合同约定支付工程款，双方又未达成延期付款协议，导致施工无法进行，承包人可停止施工，由发包人承担违约责任
C．如果发包人不履行或者不按照约定履行合同中要求完成的所有义务，应当赔偿违约行为给承包人造成的经济损失，延误的工期相应顺延
D．双方应当在专用条款内约定承包人赔偿发包人损失的计算方法，或者承包人应当支付违约金的数额和计算方法

狭义的房地产包括乡村房地产和城市中诸如“公房”以及房改中的“部分产权”的房地产。( )