男性,重体力劳动工人,腰腿痛,并向左下肢放散,咳嗽、喷嚏时加重。检查腰部活动明显受限

题型:单项选择题 共用题干题

问题:

男性,重体力劳动工人,腰腿痛,并向左下肢放散,咳嗽、喷嚏时加重。检查腰部活动明显受限,并向左倾斜,直腿抬高试验阳性。病程中无低热、盗汗、消瘦症状。

为明确诊断,最有意义的检查是()

A.X线检查

B.CT

C.超声

D.腰椎穿刺

E.肌电图

考点:中医推拿(医学高级)中医推拿专业病种中医推拿专业病种题库
题型:单项选择题 共用题干题

不同元素的原子间最本质的区别是

A.中子数不同

B.相对原子质量不同

C.质子数不同

D.最外层电子数不同

题型:单项选择题 共用题干题

图中表示效率与收入差距的关系,横轴x代表收入差距,纵轴y代表效率,原点O表示决定的平均主义和绝对的低效率。曲线表示效率随着收入差距的扩大而变化的情况。该图表明[ ]

①在x1之前,效率与收入差距成反方向变化

②收入差距扩大到一定程度之后,效率会降低

③收入差距扩大具有激励作用,效率将会提高

④将收入差距控制在一定限度内有助于保持较高的效率

A、①②

B、①④

C、②③

D、②④

题型:单项选择题 共用题干题


In this section you will find after each of the passages a number of questions or unfinished statements about the passage, each with 4 (A, B, C and D) choices to answer the question or complete the statement. You must choose the one which you think fits best. Blacken the corresponding letter as required on your Machine-scoring ANSWER SHEET.

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

题型:单项选择题 共用题干题

为保证市场经济稳定运行的主要调控手段是()。

A.法律手段

B.经济手段

C.计划手段

D.行政手段

题型:单项选择题 共用题干题

下列关键性操作中哪项是特殊操作()。

A.大风浪中航行

B.海图改正

C.雾航

D.装卸危险货物

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