女,24岁,近日发现左膝关节疼痛,行走困难,休息缓解,自觉左小腿上内似有肿块,压痛。

题型:单项选择题

问题:

女,24岁,近日发现左膝关节疼痛,行走困难,休息缓解,自觉左小腿上内似有肿块,压痛。查体:左膝关节活动稍受限,胫骨上端内侧肿胀,压痛。X线摄片所见左胫骨上端内侧有一肥皂泡样阴影,膨胀性生长

本例适当的治疗方法是

A.休息、营养
B.广谱抗生素治疗
C.手术治疗
D.抗结核治疗
E.物理治疗

考点:骨外科学主治医师骨外科基础知识骨科主治医师
题型:单项选择题

2007年我国成功地发射了一颗绕月球运行的探测卫星“嫦娥一号”.“嫦娥一号”将在距离月球表面高为h的轨道上绕月球做匀速圆周运动.

(1)若已知月球半径为R,月球表面的重力加速度为g.则“嫦娥一号”环绕月球运行的周期为多少?

(2)若已知月球半径为地球半径的四分之一,月球表面的重力加速度是地球表面重力加速度的六分之一,则月球的“第一宇宙速度”约为多大(保留1位有效数字)?

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弯曲加工成型过程中,钢材会发生什么变形?

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经济处于收缩阶段时,个人和家庭在资产的行业配置中应考虑更多投资于( )行业。

A.房地产

B.建材

C.汽车

D.电力

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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 Al-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.

All the following factors are given as reasons for the annoyance of the private courier services EXCEPT ______ .

A.lack of relations at customs

B.the monopoly of the post office

C.no network of offices

D.the shortage of workers

题型:单项选择题

2010年某商品的售价为48元,今年生产该商品的行业劳动生产率提高50%。在其他因素不变的情况下,今年该商品的售价应该是()

A.24元

B.32元

C.72元

D.96元

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