指出不引起右心室增大的疾病（） A.慢性肺原性心脏病 B.先天性心脏病--Fallo

For health insurance, the United States has taken the road less traveled. The United States is the only rich country without universal health insurance. People in the United States spend the most, rely heavily on the private sector, and obtain care from the world’s most complicated delivery system. While some supporters have expressed satisfaction, if not pride, in these remarkable qualities, others contend that the United States faces unique limitations in reforming health care.

In her exceptional book,Parting at the Crossroads, Antonia Maioni compares the formation of the U.S. and Canadian health-care systems for the years 1930—1960. The United States and Canada are often considered the most similar of Western democracies. They share a common border, are wealthy, and have federal government. Their trade unions are only moderately powerful, and their populations are diverse and young. Nevertheless, their heath-insurance systems are nearly opposite. The United States relies on a mix of government plans. Targeted to the elderly and indigent, and employment based plans, which the government indirectly supports, Canada offers public health insurance to all qualified resident, with the private sector providing supplementary services in some provinces.

Labor organizations became p advocates for health-insurance reform in both countries. Their impact partially depended on political institutions and how other actors, particularly organized medicine, wielded them. Canada’s governmental and electoral systems allowed labor to cooperate with a social democratic party in the Saskatchewan province, which established a universal program. The Saskatchewan program demonstrated universal insurance feasibility, spurring the dominant Liberals to introduce a national universal program. In contrast, the U. S. electoral system effectively precluded third-party formation, forcing organized labor to dilute its health-insurance goals because it was one of many interests represented by the Democratic Party.

Maioni suggests that economic vitality is important for the future of both countries’ systems, but the prognosis is uncertain. Despite recent concerns about the Canadian government’s budgetary health, Maioni contends that widespread support protects universal insurance. Conversely, Maioni seems pessimistic about options for U.S. universal health insurance. Despite economic buoyancy, dissension will likely prevent reforms. Although a devastating econmnic downturn would make health finance difficult in either country, the U.S. system seems especially vulnerable. Employment-based insurance and Medicare both rely on labor market attachment. High, chronic unemployment could result in coverage loss and financial difficulties for employer insurance and Medicare, swelling the uninsured pool. Such a crisis could provide an opening for universal health insurance. In any case, whether the United States relies on the public or private sector, escalating health expenditures figure into budget of government, corporations, and families, the U. S. health care system’s future may depend on Americans" willingness to devote more of their national income to health care.

Canadian heahh-care systems are dill)rent from those of the U.S. in that（）

A. the federal government is directly responsible for them

B. private sectors in Canada play a more important role

C. the government only indirectly supports the employment-based plans

D. the trade unions in both countries are only moderately powerful in such matters

对急性血源性骨髓炎最有诊断意义的是（）

A.全身中毒症状

B.干骺端有明显压痛

C.白细胞计数升高

D.局部分层穿刺

E.X线骨质破坏

图1所示为光学实验用的长方体玻璃砖，它的光学面面不能用手直接接触．在用插针法测定玻璃砖折射率的实验中，两位同学绘出的玻璃砖和三个针孔a、b、c的位置相同，且插在c位置的针正好挡住插在a、b位置的针的像，但最后一个针孔的位置不同，分别为d、e两点，如图2所示．计算折射率时，用______（填“d”或“e”）点得到的值较小，用______（填“d”或“e”）点得到的值误差较小．

天柱穴位于（）

A.当翳风与风池穴连线的中点

B.乳突前下方与下颌角之间的凹陷中

C.胸锁乳突肌与斜方肌上端之间的凹陷中

D.后发际正中直上0.5寸，旁开1.3寸，当斜方肌外缘凹陷中

E.耳后，乳突后下凹陷处

按《招标投标法》规定，大型基础设施、公用事业等关系社会公共利益、公共安全的项目，( )。

A．必须进行公开招标
B．必须进行邀请招标
C．应当进行公开招标，但经有关部门批准可以邀请招标的除外
D．应当进行邀请招标，但经有关部门批准可以不进行招标的除外