Directions: There are 10 questions in this part of the test. Read the passage through. Then, go back and choose one suitable wor

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问题     Directions: There are 10 questions in this part of the test. Read the passage through. Then, go back and choose one suitable word or phrase marked A, B, C, or D for each blank in the passage.
The health-care economy is filled with unusual and even unique economic relationships. One of the least understood involves the  (41)   roles of producer or "provider" and purchaser or "consumer" in the typical doctor-patient relationship. In most sectors of the economy, it is the seller who attempts to attract a  (42)   buyer with various inducements of price, quality, and utility, and it is the buyer who makes the  (43)  . Where circumstances permit the buyer no choice because there is effectively only one seller and the product is relatively  (44)  , government usually asserts monopoly and places the industry under price and other regulations.  (45)   of these conditions prevails in most of the health-care industry.
    In the health-care industry, the doctor-patient relationship is the mirror image of the ordinary relationship between producer and consumer.  (46)   an individual has chosen to see a physician-and even then there may be no real choice-it is the physician who usually makes all significant  (47)   decisions: whether the patient should return "next Wednesday", whether drugs should be prescribed, etc. It is a rare and sophisticated patient who will  (48)   such professional decisions or raise in advance questions about price, especially when the disease is regarded as serious.
    This is particularly significant in  (49)   to hospital care. The physician must certify the need for hospitalization, determine what procedures will be performed and announce when the patient may be  (50)  .
(45)

选项 A、Either
B、None
C、Neither
D、Any

答案C

解析 本句之前的几个句子主要概括了大多数经济部门中存在的两种情况。结合段首句,可以推断,这两种情况并没有在保健产业中普遍存在。这一点在第二段的第一句中也己进一步说明。因此应选择C项Neither,意为“两者中无一”;none指“(……任何部分)都不”,在语法上与上文不一致;either和any都不表示否定,因此逻辑上与上文不一致。
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