考研易错题（2019/3/18）

第1题：下列哪种心律失常不宜使用维拉帕米 A．心房扑动 B．快速心房颤动 C．室上性心动过速 D．预激综合征伴心房颤动

【单选题】： A     B     C     D

第2题：下列不定积分等于 的是______． A．∫f(x)f’(xdx) B．∫xf2(x2)f’(x2)dx C．∫x2f(x3)f’(x3)dx D．∫3x3f2(x3)f’(x3)dx

【单选题】： A     B     C     D

第3题：Japanese firms have achieved the highest levels of manufacturing efficiency in the world automobile industry. 46) Some observers of Japan have assumed that Japanese firms use the same manufacturing equipment and techniques as United States firms but have benefited from the unique characteristics of Javanese employees and the Javanese culture. However, if this were true, then one would expect Japanese auto plants in the United States to perform no better than factories run by United States companies. This is not the case. 47) Japanese-run automobile plants located in the United States and staffed by local workers have demonstrated higher levels of productivity when compared with factories owned by United States companies. Other observers link high Japanese productivity to higher levels of capital investment per worker.But a historical perspective leads to a different conclusion. 48) When the two top Japanese automobile makers matched and then doubled United States productivity levels in the mid-sixties, capital investment per employee was comparable to that of United States firms. Furthermore, by the late seventies, the amount of fixed assets required to produce one vehicle was roughly equivalent in Japan and in the United States. Since capital investment was not higher in Japan, it had to be other factors that led to higher productivity. A、more fruitful explanation may lie with Japanese production techniques. Japanese automobile producers did not simply implement conventional processes more effectively; they made critical change in United States procedures. 49) For instance, the mass-production philosophy of United States automakers encouraged the production of huge lots of cars in order to utilize fully expensive, component-specific equipment and to occupy fully workers who have been trained to execute one operation efficiently. Japanese automakers chose, to make small-lot production feasible by introducing several departures from United States practices, including the use of flexible equipment that could be altered easily to do several different production tasks and the training of workers in multiple jobs. 50) Automakers could schedule the production of different components or models on single machines, thereby eliminating the. need to store the spare stocks of extra components that result when specialized equipment and workers are kept constantly active.

【分析题】：

第4题：人体生理学的任务是阐明人体 A．细胞的生命现象 B．器官的功能活动 C．与环境的相互关系 D．正常的生命活动及其规律

【单选题】： A     B     C     D

第5题：The effect of the baby boom on the schools helped to make possible a shift in thinking about the role of public education in the 1920’s. In the 1920’s, but especially (1) theDepression of the 1930’s, the United States experienced a (2) birth rate. Then with the prosperity (3) on by the Second World War and the economic boom that followed it, young people married and (4) households earlier and began to (5) larger families than had their (6) during theDepression.Birth rates rose to 102 per thousand in 1946, 106.2 in 1950, and 118 in 1955. (7) economics was probably the most important (8) , it is not the only explanation for the baby boom. The increased value placed (9) the idea of the family also helps to (10) this rise in birth rates. The baby boomers began streaming (11) the first grade by the mid-1940’s and became a (12) by 1950. The public school system suddenly found itself (13) The wartime economy meant that few new schools were buih between 1940 and 1945. (14) , large numbers of teachers left their profession during that period for better-paying jobs elsewhere. (15) , in the 1950’s, the baby boom hit an antiquated and inadequate school system.Consequently, the custodial rhetoric of the 1930’s no longer made (16) ; keeping youths ages sixteen and older out of the labor market by keeping them in school could no longer be a high (17) for an institution unable to find space and staff to teach younger children. With the baby boom, the focus of educators (18) turned toward the lower grades and back to basic academic skills and (19) . The system no longer had much (20) in offering nontraditional, new, and extra services to older youths. A．notoriety B．compatibility C．proximity D．priority

【单选题】： A     B     C     D