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女性，30岁。左手掌面被宽3cm锐器刺伤2小时。查体：中指掌指关节处掌面皮肤裂伤，中指呈伸直位，感觉障碍，手指苍白发凉，Allen试验阳性。

患者术后30小时，突然出现中指色泽发白，皮温较健侧指低，扪及指腹组织发瘪。此时应采取的措施是（）

A.患肢抬高，保温

B.应用镇静、止痛药

C.立即手术探查吻合的指动脉

D.臂丛麻醉扩张血管

E.应用抗血管痉挛药物

答案

参考答案：C

单项选择题

Most people would be (1) by the high quality of medicine (2) to most Americans. There is a lot of specialization, a great deal of (3) to the individual, a (4) amount of advanced technical equipment, and (5) effort not to make mistakes because of the financial risk which doctors and hospitals must (6) in the courts if they (7) things badly.

But the Americans are in a mess. The problem is the way in (8) health care is organized and (9) . (10) to pubic belief it is not just a free competition system. The private system has been joined a large public system, because private care was simply not (11) the less fortunate and the elderly.

But even with this huge public part of the system, (12) this year will eat up 84.5 billion dollars—more than 10 percent of the U. S. Budget—large number of Americans are left (13) . These include about half the 11 million unemployed and those who fail to meet the strict limits (14) income fixed by a government trying to make savings where it can.

The basic problem, however, is that there is no central control (15) the health system. There is no (16) to what doctors and hospitals charge for their services, other than what the public is able to pay. The number of doctors has shot up and prices have climbed. When faced with toothache, a sick child, or a heart attack, all the unfortunate persons concerned can do is (17) up. Two thirds of the population (18) covered by medical insurance. Doctors charge as much as they want (19) that the insurance company will pay the bill.

The rising cost of medicine in the U. S. A. is among the most worrying problems facing the country. In 1981 the country’s health bill climbed 15.9 percent--about twice as fast as prices (20) general.

15（）

A.over

B.on

C.under

D.behind
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填空题

在双线铁路上，如无其他条件限制，则旅客列车对数的多少往往就成为是否选择（）的基本因素。
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