主页
学科
搜索
账户
常见问题
当前学科：外科住院医师
题目：
单选题
女性，33岁。近1个月来渐出现腰背痛，伴低热，盗汗。既往有肺结核病史。查体：胸
11~12
棘突明显压痛。 有助于诊断的试验是（）
A
Dugas征
B
直腿抬高试验
C
Trendelenburg征
D
拾物试验
E
Thomas征
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
经济技术落后的中国不可能取得反侵略战争的胜利。
肺癌，把握扶正祛邪治则与合理用药的关键为（）
当空气中的瓦斯浓度在（），爆炸威力最强。
开拓区域（或水平延深）地质说明书中水文地质情况应说明以下方面情况（）。
机车牵引电机采用串联供电方式。
患者对经治医生不满意时，可以重新选择医生属于（）详细向患者讲清配合治疗的必要性，以获得患者与医师的合作是（）
既治水肿，小便不利，又治风湿日久，腰膝酸痛的药物是（）。
关于青少年期的一般心理特点（）
书刊、本册的印刷制作主要有三大工序，即印前处理、印刷加工和（）。
根据下列短文，回答题。 There are various in which individual economic units Can interact with one another．Three basic ways may be described as the market system，the administered system and the traditional system．In a market system individual economic units are free to interact among each other in themarketplace．It is possible to buy commodities from other economic units or sell commodities tothem．In a market，transactions may take place via barter or money exchange．In a barter economy，real goods such as automobiles，shoes and pizzas are traded against each other．Obviously，finding somebody who wants to bade my old Car in exchange for a sailboat may not always bean easy task．Hence，the introduction of money as a medium of exchange eases transactions considerably．In the modern market economy，goods and services are bought or sold for money． An alternative to the market system is administrative control by some agency over all trans．actions．This agency will issue edicts or commands as to how much of each good and service should be produced，exchanged，and consumed by each economic unit．Central 01anaing may be one way of administering such an economy．The central plan，drawn up by the government,shows the amounts of each commodity produced by the various firms and allocated to differenthouseholds for consumption．This is an example of complete planing of production，consump—tion，and exchange for the whole economy． In a traditional society，production and consumption paUerns are governed by tradition：everyperson’S place within the economic system is fixed by parentage，religion and custom． Transac—tions take place on the basis of tradition，too．People belonging to a certain group or caste mayhave an obligation to care for other persons，provide them with food and shelter，care for theirhealth，and provide for their education．Clearly，in a system where every decision is made on thebasis of tradition alone，progress may be difficult to achieve．A stagnant society may result．What is main purpose of the passage?